Arthropod antennae. Medical search

Arthropod Antennae: Paired sense organs connected to the anterior segments of ARTHROPODS that help them navigate through the environment.Arthropods: Members of the phylum Arthropoda, composed of organisms having a hard, jointed exoskeleton and paired jointed legs. It includes the class INSECTS and the subclass ARACHNIDA, many species of which are important medically as parasites or as vectors of organisms capable of causing disease in man.Arthropod Vectors: Arthropods, other than insects and arachnids, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.Light-Harvesting Protein Complexes: Complexes containing CHLOROPHYLL and other photosensitive molecules. They serve to capture energy in the form of PHOTONS and are generally found as components of the PHOTOSYSTEM I PROTEIN COMPLEX or the PHOTOSYSTEM II PROTEIN COMPLEX.Chlorophyll Binding Proteins: A large family of proteins that have been traditionally classified as the light-harvesting proteins of the photosynthetic reaction complex. Chlorophyll binding proteins are also found in non-photosynthetic settings where they may play a photoprotective role in response to light stress.Sense Organs: Specialized organs adapted for the reception of stimuli by the NERVOUS SYSTEM.Chlorophyll: Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.Spiders: Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)Photosynthetic Reaction Center Complex Proteins: Protein complexes that take part in the process of PHOTOSYNTHESIS. They are located within the THYLAKOID MEMBRANES of plant CHLOROPLASTS and a variety of structures in more primitive organisms. There are two major complexes involved in the photosynthetic process called PHOTOSYSTEM I and PHOTOSYSTEM II.Photosystem II Protein Complex: A large multisubunit protein complex found in the THYLAKOID MEMBRANE. It uses light energy derived from LIGHT-HARVESTING PROTEIN COMPLEXES to catalyze the splitting of WATER into DIOXYGEN and of reducing equivalents of HYDROGEN.Sensilla: Collective name for a group of external MECHANORECEPTORS and chemoreceptors manifesting as sensory structures in ARTHROPODS. They include cuticular projections (setae, hairs, bristles), pores, and slits.Photosystem I Protein Complex: A large multisubunit protein complex that is found in the THYLAKOID MEMBRANE. It uses light energy derived from LIGHT-HARVESTING PROTEIN COMPLEXES to drive electron transfer reactions that result in either the reduction of NADP to NADPH or the transport of PROTONS across the membrane.Crustacea: A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).Bacteriochlorophylls: Pyrrole containing pigments found in photosynthetic bacteria.Arachnida: A class of Arthropoda that includes SPIDERS; TICKS; MITES; and SCORPIONS.Energy Transfer: The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.Insect Proteins: Proteins found in any species of insect.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Wolbachia: A genus of bacteria comprised of a heterogenous group of gram-negative small rods and coccoid forms associated with arthropods. (From Bergey's Manual of Systematic Bacteriology, vol 1, 1984)Insects: The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)Rhodospirillales: An order of photosynthetic bacteria representing a physiological community of predominantly aquatic bacteria.Thylakoids: Membranous cisternae of the CHLOROPLAST containing photosynthetic pigments, reaction centers, and the electron-transport chain. Each thylakoid consists of a flattened sac of membrane enclosing a narrow intra-thylakoid space (Lackie and Dow, Dictionary of Cell Biology, 2nd ed). Individual thylakoids are interconnected and tend to stack to form aggregates called grana. They are found in cyanobacteria and all plants.Xanthophylls: Oxygenated forms of carotenoids. They are usually derived from alpha and beta carotene.Photosynthesis: The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)Arthropod Proteins: Proteins synthesized by organisms belonging to the phylum ARTHROPODA. Included in this heading are proteins from the subdivisions ARACHNIDA; CRUSTACEA; and HORSESHOE CRABS. Note that a separate heading for INSECT PROTEINS is listed under this heading.Beetles: INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.Microwaves: That portion of the electromagnetic spectrum from the UHF (ultrahigh frequency) radio waves and extending into the INFRARED RAYS frequencies.Rhodopsins, Microbial: Rhodopsin molecules found in microorganisms such as ARCHAEA and PROTEOBACTERIA.Receptors, Odorant: Proteins, usually projecting from the cilia of olfactory receptor neurons, that specifically bind odorant molecules and trigger responses in the neurons. The large number of different odorant receptors appears to arise from several gene families or subfamilies rather than from DNA rearrangement.Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Tribolium: A genus of small beetles of the family Tenebrionidae; T. confusum is the "confused flour beetle".Chlorobi: A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.Pigments, Biological: Any normal or abnormal coloring matter in PLANTS; ANIMALS or micro-organisms.Arthropod Venoms: Venoms from animals of the phylum Arthropoda. Those most investigated are from scorpions and spiders of the class Arachnidae and from ant, bee, and wasp families of the Insecta order Hymenoptera. The venoms contain protein toxins, enzymes, and other bioactive substances and may be lethal to man.Animal Structures: Organs and other anatomical structures of non-human vertebrate and invertebrate animals.Invertebrates: Animals that have no spinal column.Smell: The ability to detect scents or odors, such as the function of OLFACTORY RECEPTOR NEURONS.Biological Evolution: The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.Heteroptera: A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It includes the medically important families CIMICIDAE and REDUVIIDAE. (From Dorland, 28th ed)Coprophagia: Eating of excrement by animal species.Injections, Epidural: The injection of drugs, most often analgesics, into the spinal canal without puncturing the dura mater.Hemiptera: A large order of insects characterized by having the mouth parts adapted to piercing or sucking. It is comprised of four suborders: HETEROPTERA, Auchenorrhyncha, Sternorrhyncha, and Coleorrhyncha.Cockroaches: Insects of the order Dictyoptera comprising several families including Blaberidae, BLATTELLIDAE, Blattidae (containing the American cockroach PERIPLANETA americana), Cryptocercidae, and Polyphagidae.Anatomy, Regional: The anatomical study of specific regions or parts of organisms, emphasizing the relationship between the various structures (e.g. muscles, nerves, skeletal, cardiovascular, etc.).Biomechanical Phenomena: The properties, processes, and behavior of biological systems under the action of mechanical forces.Flight, Animal: The use of wings or wing-like appendages to remain aloft and move through the air.Body Weights and Measures: Measurements of the height, weight, length, area, etc., of the human and animal body or its parts.Flagella: A whiplike motility appendage present on the surface cells. Prokaryote flagella are composed of a protein called FLAGELLIN. Bacteria can have a single flagellum, a tuft at one pole, or multiple flagella covering the entire surface. In eukaryotes, flagella are threadlike protoplasmic extensions used to propel flagellates and sperm. Flagella have the same basic structure as CILIA but are longer in proportion to the cell bearing them and present in much smaller numbers. (From King & Stansfield, A Dictionary of Genetics, 4th ed)Posters as Topic: Single or multi-sheet notices made to attract attention to events, activities, causes, goods, or services. They are for display, usually in a public place and are chiefly pictorial.Congresses as Topic: Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.Posters Odors: The volatile portions of substances perceptible by the sense of smell. (Grant & Hackh's Chemical Dictionary, 5th ed)Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Taste: The ability to detect chemicals through gustatory receptors in the mouth, including those on the TONGUE; the PALATE; the PHARYNX; and the EPIGLOTTIS.

Serotonin modulates olfactory processing in the antennal lobe of Drosophila. (1/177)

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Antennal lobe processing increases separability of odor mixture representations in the honeybee. (2/177)

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Physiological and morphological characterization of local interneurons in the Drosophila antennal lobe. (3/177)

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Regulation of odor receptor genes in trichoid sensilla of the Drosophila antenna. (4/177)

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Switching attraction to inhibition: mating-induced reversed role of sex pheromone in an insect. (5/177)

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On the role of copepod antennae in the production of hydrodynamic force during hopping. (6/177)

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Drosophila CtBP regulates proliferation and differentiation of eye precursors and complexes with Eyeless, Dachshund, Dan, and Danr during eye and antennal development. (7/177)

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Behavioral and neurophysiological responses of an insect to changing ratios of constituents in host plant-derived volatile mixtures. (8/177)

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Arachnid - Simple English Wikipedia, the free encyclopedia

The Arachnids are a class of eight-legged arthropods.[1] They are a highly successful group of mainly terrestrial invertebrates ... Arachnids have no antennae or wings. Their body is organized into two parts: the cephalothorax, and the abdomen. ... Like all arthropods, arachnids have an exoskeleton. They also have an internal structure of cartilage-like tissue, to which ...

Aquatic locomotion

Some Arthropod groups can swim - including many crustaceans. Most crustaceans, such as shrimp, will usually swim by paddling ... swims by beating its antennae instead. There are also a number of forms of swimming molluscs. Many free-swimming sea slugs, ... Some arthropods, such as lobsters and shrimps, can propel themselves backwards quickly by flicking their tail, known as ... These are mostly related to the arthropods, and include the Anomalocaridids, which swam by means of lateral lobes in a fashion ...

Onychophora

However, antennae, mandibles, and oral papillae are probably not homologous to the corresponding features in arthropods, i.e., ... "antennae" may in fact be produced through decay. Holm, E.; Dippenaar-Schoeman, A. (2010). The Arthropods of Southern Africa. ... What is the ancestral visual organ in arthropods?". Arthropod Structure & Development. 35 (4): 231-45. doi:10.1016/j.asd. ... The "stem-group arthropod" hypothesis is very widely accepted, but some trees suggest that the onychophorans may occupy a ...

Scutigera coleoptrata

Despite their developed eyes, they seem to rely mostly on their antennae when hunting. Their antennae are sensitive to both ... House centipedes feed on spiders, bed bugs, termites, cockroaches, silverfish, ants, and other household arthropods. They ... 15 (antenna-like snare legs) (gonopod) (anus) Tergites 10 and 11 are not fully developed and segment 18 does not have a ... Together with the antennae they give the centipede an appearance of being 75 to 100 mm (3 to 4 in) in length.[3] The delicate ...

Hexapoda

Most other arthropods have more than three pairs of legs. Hexapods have bodies ranging in length from 0.5 mm to over 300 mm ... Antennae (sensory), absent in Protura Segment III. None Segment IV. Mandibles (crushing jaws) Segment V. Maxillae (chewing jaws ... As is typical of arthropods adapted to life on land, each leg has only a single walking branch composed of five segments, ... This fossil may help to fill the arthropod gap from 385 million to 325 million years ago. Wang, Yan-hui; Engel, Michael S.; ...

Balanus balanus

Cement glands near the base of the antennae fix them to the rock. The carapace of this species is conical with a circular base ... Crustaceans portal Arthropods portal "Balanus balanus (Linnaeus, 1758)". Encyclopedia of Life. April 13, 2011. Retrieved May 5 ... The nauplii feed, moult five times and swim with their antennae. It takes about one month for them to develop into the cyprid ...

Cambrian explosion

... was clearly an arthropod, but not a member of any known arthropod class. Organisms such as the five-eyed Opabinia and spiny ... the antennae and legs. ... A fossilized trilobite, an ancient type of arthropod: This ... Most of the phyla featured in the debate about the Cambrian explosion[clarification needed] are coelomates: arthropods, annelid ... Budd, G.E. (1996). "The morphology of Opabinia regalis and the reconstruction of the arthropod stem-group". Lethaia. 29 (1): 1- ...

Entognatha

Arthropods portal David A. Grimaldi & Michael S. Engel (2005). "Arthropods and the origin of insects". Evolution of the Insects ... Proturans, sometimes referred to as "coneheads", do not have eyes or antennae. They possess abdominal styli thought to be ... These minute arthropods are apterous, unlike some orders of insects that have lost their wings secondarily (but are derived ... The Entognatha are a class of wingless (ametabolous) arthropods, which, together with the insects, makes up the subphylum ...

Spodoptera littoralis

Antenna are paired appendages attached to an arthropod's head that usually has a sensory function. Antenna in S. littoralis has ... Antennae serves an important function in adult moth courtship. A male answering a female mate-call fully extends its antennae ... Males without antennae did not answer female mate-call, which resulted in lack of mating. Females without antennae seldom mated ... Experiments showed that antennal lobe of adult antenna are responsible for detecting different types of sensory inputs that are ...

Laboulbeniomycetes

They live on the antennae, the mouthparts or other body regions of their arthropod hosts. Although several species of ... In nature, the fruiting bodies sit on the foot cell, which lies on the insect's antennae. Herpomyces periplanetae is a very ... The Laboulbeniomycetes are a unique group of fungi that are apparent external parasites of insects and other arthropods, both ... These fungi are usually apparent only on adult hosts; apparently immature arthropods eliminate them during ecdysis (adult ...

List of spiders of Sri Lanka

Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure. As of ... Unlike insects, spiders do not have antennae. In all except the most primitive group, the Mesothelae, spiders have the most ... There are about 2 million species of arthropods found in the world, and still it is counting. So many new species are discover ... Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. ...

Agra (genus)

They rest on the undersides of leaves with their bodies aligned along the midrib, legs and antennae tucked in. The larvae ... Adults of some species are probably predators of other arthropods. Some have also been seen drinking sap and eating pollen. ...

Lobster

Like most arthropods, lobsters must moult to grow, which leaves them vulnerable. During the moulting process, several species ... Because lobsters live in murky environments at the bottom of the ocean, they mostly use their antennae as sensors. The lobster ... The lobster's head bears antennae, antennules, mandibles, the first and second maxillae, and the first, second, and third ... Although lobsters are largely bilaterally symmetrical like most other arthropods, some genera possess unequal, specialised ...

Danaus chrysippus

The bodies of adult plain tigers are about 23 mm long, and their antennae are about 12 mm long. Depending on temperature, males ... Most predators of the early developmental stages of D. chrysippus are arthropods. Such potential predators include various ...

Muscina

The antennae of the false stable fly can detect buried bodies. In these cases, the fly lays its eggs on top of the soil, and ... and will eat other forensically important arthropods. Presence of the false stable fly larvae on buried bodies enables ...

Maevia inclemens

Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by increasing their blood ... spiders and other chelicerates do not have antennae. Almost all jumping spiders are predators, mostly preying on insects, on ... Almost all jumping spiders are predators, mostly preying on insects, on other spiders, and on other arthropods. M. inclemens is ... 2 Like other arthropods, spiders have sensors, often modified setae (bristles), for smell, taste, touch and vibration, ...

Portia labiata

Spiders, like other arthropods, have sensors, often modified setae (bristles), for smell, taste, touch and vibration protruding ... through their cuticle ("skin").:532-533 Unlike insects, spiders and other chelicerates do not have antennae. A Portia can sense ... and on other arthropods. The most common procedure is sighting the prey, stalking, fastening a silk safety line to the surface ... 444 The webs of spiders on which Portias prey sometimes contain dead insects and other arthropods which are uneaten or partly ...

Portia africana

Molaria

Eyes were lacking, but a pair of short antennae was present on the cephalon. Specimens of Molaria ranged from 8 to 26 mm in ... Molaria spinifera is a species of chelicerate-like arthropod known from the Middle Cambrian Burgess Shale. 144 specimens of ... Molaria was superficially similar to Habelia, another Burgess Shale arthropod with a long tail spine, but which possessed 12 ... Whittington, H. B. (1981). "Rare Arthropods from the Burgess Shale, Middle Cambrian, British Columbia". Philosophical ...

Ant mimicry

Their long antennae are camouflaged to appear short, being black only at the base, and they are vibrated like ant antennae. ... Some arthropods mimic ants to escape predation (protective mimicry), while others mimic ants anatomically and behaviourally to ... There are ant-mimicking arthropods in several different groups, described below. Young instars of some Orthoptera, such as the ...

Sleep in non-human animals

If an arthropod is experimentally kept awake longer than it is used to, then its coming rest period will be prolonged. In ... cockroaches that rest period is characterized by the antennae being folded down and by a decreased sensitivity to external ...

Anthicidae

Legs and antennae are slender, heightening the ant-like appearance, and the body is sparsely covered with setae. Adult beetles ... are omnivorous, being known to consume small arthropods, pollen, fungi, and whatever else they can find. Some species are of ...

Platypus apicalis

"Like all arthropods, the Platypus aplicalis is an invertebrate with an external skeleton, segmented body and jointed appendages ... The colour of Platypus apicalis is mainly dark-brown, with yellow basal joint of antennae, metathorax and femora. The body is ... The terminal segment of the antennae is dorso-ventrally flattened and larger than the other antennal segments. The mesothoracic ...

Centipede

Their antennae have 17 or more segments. The eyes have a fixed number of four ocelli on each side in the family Scolopendridae ... Forcipules are a unique feature found only in centipedes and in no other arthropods. The forcipules are modifications of the ... In some species, the first pair of legs at the head end of the centipede acts as sense organs similar to antennae, but unlike ... These are located at the base of the antennae, and consist of a disc-like structure with a central pore surrounded by sensory ...

Homeobox

This is not uncommon in arthropods as all arthropod appendages are homologous. Hox genes and their associated microRNAs are ... Two examples of homeobox mutations in the above-mentioned fruit fly are legs where the antennae should be (antennapedia), and a ... Famous examples are Antennapedia and bithorax in Drosophila, which can cause the development of legs instead of antennae and ... Interestingly, there is one insect family, the xyelid sawflies, in which both the antennae and mouthparts are remarkably leg- ...

Appendage

All arthropod appendages are variations of the same basic structure (homologous), and which structure is produced is controlled ... These include antennae, mouthparts (including mandibles, maxillae and maxillipeds), gills, walking legs (pereiopods), swimming ... such as legs instead of antennae. Appendicular skeleton. ...

Barnacle

A barnacle is a type of arthropod constituting the infraclass Cirripedia in the subphylum Crustacea, and is hence related to ... Free-living barnacles are attached to the substratum by cement glands that form the base of the first pair of antennae; in ... Adult barnacles have few appendages on their heads, with only a single, vestigial pair of antennae, attached to the cement ... Arthropod Structure & Development. 38 (5): 361-375. doi:10.1016/j.asd.2009.04.002. PMID 19376268.. ...

Evolution of nervous systems

Many arthropods have well-developed sensory organs, including compound eyes for vision and antennae for olfaction and pheromone ... Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve ... Protostomes, the more diverse group, include arthropods, molluscs, and numerous types of worms. There is a basic difference ...

Wikijunior:Bugs/Stinkbug - Wikibooks, open books for an open world

McGavin, G. C. (2000). Dorling Kindersley handbooks Insects spiders and other terrestrial arthropods. NY: Dorling Kindersley, ... "Penta" refers to their five-segmented antennae. Stink bugs are also called shield bugs because their thick wing covers look ...

en.wikibooks.org

Download Animal Arthropods Cleans Discolor Face Glass Insect Length...

Animal Arthropods Cleans Discolor Face Glass Insect Length Nobody Pterygota Side: 1 assigned downloads, like Long-winged ... conehead grasshopper (Conocephalus discolor), male, cleaning its antennae from stock-photos ... Similar tags: animal • arthropods • cleans • discolor • face • glass • insect • kurt möbus • length • nobody • pterygota • ... Animal Arthropods Cleans Discolor Face Glass Insect Length Nobody Pterygota Side downloads. ...

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Pauropod | arthropod class | Britannica.com

arthropod: Annotated classification. Class Pauropoda Antennae branched; a pair of maxillae; 9-11 trunk segments bearing legs; ... Pauropods range in length from 0.5 to 2 mm (0.02 to 0.08 inch). The pauropod head is tiny, with large, branched antennae; deep- ...

britannica.com

Carpenter ants use diverse antennae sampling strategies to track odor trails | Journal of Experimental Biology

2017). Vision for navigation: what can we learn from ants? Arthropod. Struct. Dev. 46, 718-722. doi:10.1016/j.asd.2017.07.001. ... 2015). One antenna, two antennae, big antennae, small: total antennae length, not bilateral symmetry, predicts odor-tracking ... Single antenna removal results in reduced tracking accuracy and altered antenna usage. (A) Normalized relative antenna tip ... Single-antenna ants show behavioral compensation through altered antenna usage. To test the importance of bilateral antennae ...

jeb.biologists.org

Male water striders evolved antennae to grab females by the eyes

And more arthropod perversions: *Male spider snaps off own genitals inside female to fertilise her remotely, while being eaten ... Males of species also have weird antennae that "are so different you wouldnt recognize them as being antennae or from the same ... To understand how the antennae evolved, Khila catalogued the genes that are activated in the antennae, as males and females ... And finally, the antenna ends in a hook lined with small buttons (blue in the photo), which fits into one of two grooves in the ...

blogs.discovermagazine.com

WORKSHOP A Bug's Eye View | Ann Arbor Hands-On Museum

Bugs Eye View Experience the alien world of arthropods through this special, interactive workshop. Fun activities and lively ... Arachnids lack antennae.. Arthropod: An organism from the phylum Arthropoda with a characteristic segmented body and jointed ... Insects have antennae. Different insects use their antennae in different ways, but all of them use them to get a sense of their ... Insects: A class of arthropods with three body parts, three pairs of legs and, usually, two pairs of wings. ...

aahom.org

Science Explorations: Classify Insects: Zoom in on True Bugs: Arthropods | Scholastic.com

Unlike other arthropods, cheliceratids lack antennae and jaws. Instead, the first pair of appendages is a pair of pincers, or ... Groups of Arthropods. The arthropods are often classified, or divided, into four distinct groups, or subphyla. They are ... Arthropod Evolution. Many biologists suspect that the arthropods evolved from the annelids, a phylum of segmented worms that ... In addition to walking legs, arthropod appendages include antennae, mandibles (mouthparts), claws, swimming paddles, wings, and ...

teacher.scholastic.com

ENV BIOL 3011 - Evolution and Diversity of Insects III | Course Outlines

Structure and function of the arthropod exoskeleton; running, jumping, swimming and flying (how the arthropod exoskeleton works ... External morphology of insects: sclerites and inter-segmental membranes; head (mouthparts and antennae); thorax (legs, wings ... Introduction to the course - insect diversity; insects as pests and beneficial organisms; evolution and phylogeny of arthropods ... monophyletic versus polyphyletic evolution of the exoskeleton; relationships among the major arthropod groups (Hexapoda, ...

adelaide.edu.au

Computational Modeling in Biological Fluid Dynamics | Lisa J. Fauci | Springer

Fluid Dynamics of Animal Appendages that Capture Molecules: Arthropod Olfactory Antennae. Pages 97-116 ...

springer.com

Tiny individuals attached to a new Silurian arthropod suggest a unique mode of brood care | PNAS

The relative position of antenna and chelate appendages in other Paleozoic arthropods, however, suggests that the uniramous ... Here we report a new arthropod with 10 tiny arthropods tethered to its tergites by long individual threads. The head of the ... Thus, the evidence indicates that the attached individuals are arthropods.. Arthropods attached by a thread are likely to ... Here we report a new larger arthropod from the same fauna, with smaller arthropods attached to the tergites by means of long ...

pnas.org

Hockman D[au] - PubMed - NCBI

Arthropod Struct Dev. 2009 Mar;38(2):125-33. doi: 10.1016/j.asd.2008.08.001. Epub 2008 Sep 30. ... Postembryonic development of the unique antenna of Mantophasmatodea (Insecta).. Hockman D, Picker MD, Klass KD, Pretorius L. ...

ncbi.nlm.nih.gov

An Arbitrary Architecture for an Artificial Arthropod | Springer for Research & Development

Zacharuk, R.Y. (1985). Antennae and sensilla. In G.A. Kerkut & L.I. Gilbert (eds.), Comprehensive insect physiology. ... Webb B. (2000) An Arbitrary Architecture for an Artificial Arthropod. In: Cruse H., Dean J., Ritter H. (eds) Prerational ...

rd.springer.com

Antenna (biology) - Wikipedia

Antennae (singular: antenna), sometimes referred to as "feelers," are paired appendages used for sensing in arthropods. ... The pair attached to the second segment are called secondary antennae or simply antennae. The second antennae are ... all non-crustacean arthropods have a single pair of antennae. Crustaceans bear two pairs of antennae. The pair attached to the ... and even anchoring the arthropod to a substrate. Larval arthropods have antennae that differ from those of the adult. Many ...

en.wikipedia.org

Arthropoda - The Canadian Encyclopedia

Chelicerates are the only arthropods lacking antennae. The body consists of cephalothorax (fused head and thorax) and ... The size of arthropods is limited by surface-volume relationships. The surface area of an arthropod varies with the square of ... Thus, large arthropods are relatively heavier than smaller ones and small arthropods have a relatively larger surface area. ... Arthropod blood is usually colourless because it lacks the respiratory pigments of vertebrate blood. Aquatic arthropods breathe ...

thecanadianencyclopedia.com

Mechanical processing via passive dynamic properties of the cockroach antenna can facilitate control during rapid running |...

The decreasing flexural stiffness profile of the antenna is consistent with other measurements in tapered arthropod antennae, ... radius of antenna. R. radius of curvature. rb. radius at base of antenna. rt. radius at tip of antenna. s. distance from clamp ... If we assume geometric similarity between our robotic antenna (antenna length=36 cm) and P. americana (antenna length=1.3×body ... antenna length=4.82±0.39 cm; three left antennae, two right antennae). As predicted from our approximation of the second moment ...

jeb.biologists.org

Antenna (biology) - New World Encyclopedia

Antennae (singular antenna) are paired appendages connected to the anterior-most segments of arthropods. In crustaceans, they ... Arthropod antennae generally extend forward from the head. They are sensory organs, although the exact nature of what they ... The word antenna has also been used as a common metaphor, "spiritual antenna," in a variety of religious and spiritual ... Just as antenna are sensory organs, spiritual antenna signify openness to a sixth sense, intuition, or spiritual reality. ...

newworldencyclopedia.org

Sowbug Report - 1895 Words | Bartleby

Arthropods use pheromones, this includes sowbugs and cockroaches. Chemical signals are picked up by antennae.. II. Hypothesis: ... Introduction: Pillbugs and sowbugs are terrestrial isopods that belong to the order Isopoda and the arthropod class crustacean ...

bartleby.com

Plant diseases | Università degli Studi di Milano Statale

to know the dynamics and issues related to the arthropods present in a forest environment or correlated to crops in mountain ... Parts of the head and appendages (antennae and mouthparts). Mouthparts: chewingr; piercing, sucking (Rhynchota). -Morphology of ... provide knowledge of the forest ecosystem and of associated arthropod coenosis or correlated to crops in mountain habitats,. - ... Differences between Insects and other Arthropods. General characteristics of insects. II. INSECT BODY STRUCTURE & FUNCTION- ...

unimi.it

Homology (biology) - New World Encyclopedia

Homology: Other arthropod appendages. Insect mouthparts and antennae are considered homologues of insect legs. Parallel ... Adaptive radiation of insect mouthparts: a, antennae; c, compound eye; lb, labrium; lr, labrum; md, mandibles; mx, maxillae. ... developments are seen in some arachnids: The anterior pair of legs may be modified as analogues of antennae, particularly in ...

newworldencyclopedia.org

MPI CE: Poster Presentations

Groh K., Grosse-Wilde E., Vogel H., Stensmyr M.C., Hansson B.S. (2013). COMPARATIVE TRANSCRIPTOMICS OF ARTHROPOD ANTENNAE. ... Koch S., Hansson B.S., Kleineidam C., Grosse-Wilde E. (2013). OLFACTORY RELATED GENE EXPRESSION IN THE ANTENNA OF LEAF-CUTTING ... Grosse-Wilde E., Hansson B.S. (2009). Olfactory receptors of arthropods. Poster presented at 11th European Symposium for Insect ... implications for the evolution of the arthropod olfactory system. Poster presented at XVI International Symposium on Olfaction ...

ice.mpg.de

Arachnid - Simple English Wikipedia, the free encyclopedia

simple.wikipedia.org

Fröhlich A[au] - PubMed - NCBI

Arthropod Struct Dev. 2013 Mar;42(2):95-106. doi: 10.1016/j.asd.2012.10.003. Epub 2012 Nov 7. ... Built to break: the antenna of a primitive insect, Petrobius brevistylis (Archaeognatha). ... Arthropod Struct Dev. 2013 Jan;42(1):89-94. doi: 10.1016/j.asd.2012.10.001. Epub 2012 Oct 10. ...

ncbi.nlm.nih.gov

Stick Insect Antennae - Scholarpedia

... the stick insects tactile near-range sense can serve as a model for understanding the significance of the arthropod antenna in ... Antennae are dedicated sensory limbs. Figure 3: Stick insects can regenerate a leg in place of an antenna. The top image shows ... 2 Antennae are dedicated sensory limbs. *3 Four adaptations improve tactile efficiency *3.1 Matching lengths of antennae and ... Antennae are active near-range sensors. Movie 1: Stick insects continuously move their antennae during walking. The video shows ...

scholarpedia.org

Public-Health Pesticide Applicator Training Manual - Venomous Arthropods

Like all arachnids, spiders have no antennae. The abdomen, immediately behind the cephalothorax, is saclike and usually ... VENOMOUS ARTHROPODS. I. Hymenoptera - Yellowjackets, Hornets and Wasps - Bees - Ants II. Spiders III. Centipedes and Scorpions ... If their normal routine does not bring them in contact with venomous arthropods, people should not have to take the test. But ... Scorpions make up a small order (Scorpiones) of arthropods related to spiders. Scorpions have eight legs, a combined head and ...

entomology.ifas.ufl.edu

Aquatic locomotion - Wikipedia

en.wikipedia.org

For added protection, the exoskeleton of ocean-dwelling arthropods (the crustaceans) is strengthened by the addition of the mineral calcium carbonate. (scholastic.com)
Many crustaceans and insects can regenerate antennas, as well as legs and claws. (newworldencyclopedia.org)
Crustaceans are also characterized by two pairs of antennae that extend in front of the mouth. (newworldencyclopedia.org)
In some groups of crustaceans, such as the spiny lobsters and slipper lobsters, the second antennae are enlarged, while in others, such as crabs , the antennae are reduced in size. (newworldencyclopedia.org)
Many crustaceans, for example, have free-swimming larvae that use their antennae for swimming. (wikipedia.org)
The common ancestor of all arthropods likely had one pair of uniramous (unbranched) antenna-like structures, followed by one or more pairs of biramous (having two major branches) leg-like structures, as seen in some modern crustaceans and fossil trilobites. (wikipedia.org)
Crustaceans bear two pairs of antennae. (wikipedia.org)
There are several notable non-sensory uses of antennae in crustaceans. (wikipedia.org)
Many crustaceans have a mobile larval stage called a nauplius, which is characterized by its use of antennae for swimming. (wikipedia.org)
Insects evolved from prehistoric crustaceans, and they have secondary antennae like crustaceans, but not primary antennae. (wikipedia.org)
Spiders, insects and crustaceans are all different types of arthropods. (wikibooks.org)
Some Arthropod groups can swim - including many crustaceans. (wikipedia.org)
most antennae in other arthropods are homologous with the antennules of crustaceans. (thefreedictionary.com)
Most crustaceans have 4 antennae. (uky.edu)
The systematic placement of euthycarcinoids remains somewhat problematic, since they show similarities with crustaceans and uniramian arthropods, including insects. (abdn.ac.uk)
Crustaceans share several derived features: the nauplius larva, two pairs of antennae and biramous ('two branched') second antennae. (els.net)
The Crustaceans are only the third largest of the great Arthropod subphylla, containing a lower number of species than either the insects or the arachnids. (earthlife.net)
And an arthropod is an invertebrate member of the phylum Arthropoda, which phylum covers insects, spiders, crustaceans, and centipedes/millipedes, all of whose main commonality, besides the absence of a centralized brain-spine assembly, is a chitinous exoskeleton composed of segments, to which appendages are articulated in pairs. (genius.com)
Insects, arachnids, crustaceans and others are arthropods. (monarch.org.nz)
Insects may be found in nearly all environments, although only a small number of species occur in the oceans, a habitat dominated by another arthropod group, the crustaceans. (phys.org)

This chapter deals with the major groups of venomous arthropods: the hymenopterans , spiders, centipedes and scorpions, and urticating caterpillars. (ufl.edu)
Spiders, bees, and wasps are the three kinds of arthropod that most often bite people. (encyclopedia.com)
Centipedes, millipedes, mites, sowbugs, and spiders are non-insect arthropods: all have external skeletons but adults have more than six legs. (ct.gov)
With regard to the Encyclopedia of Touch, my only major comment concerns the comparison of spiders and other arthropod groups, particularly insects. (scholarpedia.org)
Sea spiders are marine arthropods that feed on nutrients of other soft-bodied marine invertebrates. (thoughtco.com)
Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. (appbrain.com)
Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. (appbrain.com)
Unlike insects, spiders do not have antennae. (appbrain.com)
In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. (appbrain.com)
Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure. (appbrain.com)
Centipedes are unusual among the arthropods (insects, spiders, etc.) because their exoskeletons lack the waxy coating that helps to retain water inside the body. (osu.edu)
Centipedes are generalist predators, preying on insects, spiders and other small arthropods. (osu.edu)

Arthropods are distinguished by a cuticular exoskeleton, secreted by an underlying layer of epidermal cells. (thecanadianencyclopedia.com)
Young arthropods grow by periodically shedding and replacing their exoskeleton (molting), a process controlled by hormones (principally ecdysterone). (thecanadianencyclopedia.com)
Arthropods (phylum Arthropoda) are invertebrates that are characterized by the possession of a segmented body, a pair of jointed appendages on each segment, and an exoskeleton . (newworldencyclopedia.org)
Like all arthropods, arachnids have an exoskeleton . (wikipedia.org)
The fossil is an arthropod, an invertebrate animal with an exoskeleton, segmented body and jointed limbs. (csmonitor.com)
Instead, the ancient animal's nervous system looks more like those of other animals such as velvet worms, Onychophora , which are cousins to arthropods, but, without a hard exoskeleton, they are not arthropods themselves. (csmonitor.com)
A snail, for instance, has an exoskeleton (a shell), but it has no legs, so it is not an arthropod. (uky.edu)
If your animal has an exoskeleton and jointed legs, it must be an insect, a spider, or some other kind of arthropod. (uky.edu)
Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae. (absoluteastronomy.com)
Insects are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. (pinterest.com)
An exoskeleton and jointed appendages are sufficient to establish identification as an arthropod. (bigthink.com)
Respiration in the arthropods occurs through microscopic holes in the exoskeleton and body wall. (cliffsnotes.com)
The exoskeleton of a chelicerate is a hard external structure made of chitin that protects the arthropod, prevents desiccation, and provides structural support. (thoughtco.com)
Like all arthropods, millipedes lack an internal skeleton, and instead are protected by a tough outer shell called an exoskeleton or cuticla , made of several layers. (cirrusimage.com)
This great flexibility of structure, along with the general successfulness of the Arthropod plan (exoskeleton and jointed limbs) has enabled them to be extremely successful as a group of animals. (earthlife.net)
Instead, insects and other arthropods have a covering on the outside of the body called an exoskeleton. (britannica.com)
Like other arthropods, an insect has a hard outer covering, or exoskeleton, a segmented body, and jointed legs. (infoplease.com)
An arthropod with a tough exoskeleton, S. gigantea has between 21 and 23 separate sections, each with its own pair of legs. (todayifoundout.com)
As it grows, its exoskeleton becomes too small, so this arthropods molts (sheds its skin), to be replaced shortly thereafter with a newer, bigger outer shell. (todayifoundout.com)
Arthropods are animals with segmented bodies, six or more jointed legs, and a hard outer shell called an exoskeleton. (pnc.com)

Differences between Insects and other Arthropods. (unimi.it)
Therefore, because this is a single lineage, an understanding of their global species richness, and that of the insects and other arthropods of which they form a part, is particularly important. (pnas.org)

A predominately aquatic class of arthropods including crabs, lobsters, shrimp and copepods. (aahom.org)

With the exception of Slugs , our special guest critters from the mollusk group (Phylum Mollusca), The Kentucky Critter Files is an on-line guide to common Kentucky arthropods. (uky.edu)
The phylum Arthropoda is separated into a few different groups called 'classes,' and it is fairly easy to tell which class an arthropod belongs to. (uky.edu)

Accordingly, the stick insect antenna (or feeler), together with the antennae of the cockroach , cricket and honeybee, belongs to the best-studied insect antennae . (scholarpedia.org)
The aim of the present article is to provide an overview over the behavioural relevance, adaptive properties and sensory infrastructure of stick insect antennae, along with a complete bibliography thereof. (scholarpedia.org)
Flexural stiffness of insect antennae. (uci.edu)
For example, the articles on insect antennae deal with tactile hairs and hair plates, too. (scholarpedia.org)
Cross-links and a comment on homology or analogy might be helpful to the reader (I see that the same should be - and is being - communicated to the authors of the insect antennae articles). (scholarpedia.org)
Traditionally, the animal's set of claw-like appendages at the front of its head were associated with either insect antennae or to pincers of living arthropods, such as scorpions. (nhm.ac.uk)

The second antennae may be significantly reduced (e.g. remipedes), apparently absent (e.g. barnacles), or modified to such an extent that they no longer resemble antennae (e.g. spiny lobsters and slipper lobsters). (wikipedia.org)

On closer inspection the mite has no antennae, no wings, 4 pairs of legs, an unsegmented abdomen, and simple eyes. (walterreeves.com)
Whereas an insect such as a bee will have 3 body parts, 2 compound eyes, 2 antennae, 4 wings, 3 pairs legs, and a segmented abdomen. (walterreeves.com)
Like all arthropods, the nervous system of an arachnid is based around a ventral nerve cord that runs along its abdomen and terminates in the sting. (sciencephoto.com)

Type of arthropod that has 3 body parts, 6 legs, 1 or 2 pair of wings, and a pair of antennae. (studystack.com)
Insects are the only arthropods that ever have wings. (uky.edu)
Nematocera is composed of smaller, delicate flies that have segmented antennae, long legs, and thin wings. (angelfire.com)
From an ancestral form similar to a millipede, insects have developed six legs, two or four wings, sensitive antennae and complex mouth parts. (reference.com)
In addition to the characteristics already mentioned, insects also are distinguished by having one pair of antennae, and most have wings and three body regions as adults. (ct.gov)
Taxons under Insecta also have a pair of antennae, compound eyes, two pairs of wings, three pairs of legs, complex mouth parts and take part in metamorphosis. (reference.com)
The female cannot fly as it has no wings (nor legs, antennae or eyes). (monarch.org.nz)

Arthropods such as mites and lice flourish on the bodies of almost every kind of animal on Earth. (scholastic.com)
In addition, you will probably need to mail small arthropods such as mites, larval ticks and minute flies. (clemson.edu)

They have stalked eyes, gills on their legs, and antennae. (genius.com)

Three body regions, a single pair of antennae, and six legs are traditionally sufficient to establish identification as 'insect' on Earth. (bigthink.com)

The second antennae are plesiomorphically biramous, but many species later evolved uniramous pairs. (wikipedia.org)
The Crustacea is a subphylum of arthropods defined by the nauplius larva, two pairs of antennae and biramous ('two branched') second antennae. (els.net)

Early chelicerates were predatory arthropods, but modern chelicerates have diversified to take advantage of a variety of feeding strategies. (thoughtco.com)
Centipedes (Latin, = hundred foot) are exclusively predatory arthropods belonging to the class Chilopoda (Latin, = fang foot). (osu.edu)
They exploit insect prey of predatory arthropods as food source to which they are attracted by volatiles. (frontiersin.org)

The first antennae of the Crustacea Malacostraca and the antennae of the Thysanura Ectognatha and of all the Insecta Pterygota belong to this type. (biologists.org)
All Crustacea can be distinguished from the other groups of Arthropods by the possession of two pairs of antennae, and by the presence of biramous limbs. (earthlife.net)
Despite the advent of modern molecular and computational methods, the phylogeny of the four major arthropod groups (Chelicerata, Myriapoda, Crustacea and Hexapoda, including the insects) remains enigmatic. (royalsocietypublishing.org)

All other arthropod groups, except chelicerates and proturans (which have none), have a single, uniramous pair of antennae, such as Myriapoda (millipedes, centipedes), Insecta (insects), and the extinct Trilobita ( trilobites ). (newworldencyclopedia.org)
They have one pair of antennae on the head. (newworldencyclopedia.org)
The second pair are biramous, meaning that each antenna branches into two, and each branch consists of a series of segments attached end-to-end. (newworldencyclopedia.org)
The pair attached to the first segment of the head are called primary antennae or antennules. (wikipedia.org)
The pair attached to the second segment are called secondary antennae or simply antennae. (wikipedia.org)
Type of arthropod that has 1 or 2 pair of legs for each body segment. (studystack.com)
Type of aquatic arthropod that has 10 legs, and 2 pair of antennae. (studystack.com)
chelicera -- The first pair of appendages of a chelicerate arthropod. (berkeley.edu)
Centipedes have 2 antennae and venomous fangs, which are actually the first pair of legs. (uky.edu)
Characteristically the appendages of the preabdomen are multi-segmented, almost antenna-like, with one leg pair per sternite. (abdn.ac.uk)
Each section of an arthropod body has a pair of appendages. (reference.com)
One pair of antennae. (getrevising.co.uk)
1 pair of antennae. (getrevising.co.uk)
This recent research suggests that a pair of appendages, as seen in anomalocaridids, could have migrated backwards to form the labrum, a structure that borders the mouth in contemporary arthropods. (nhm.ac.uk)
The last pair of legs can be more than twice its body length and are used as a kind of rear-facing antennae. (osu.edu)
A pair of very long slender antennae extends forward from the head. (osu.edu)
At its head, this creepy invertebrate has two antennae and a pair of mandibles called forcipules that contain venom that is injected into prey. (todayifoundout.com)
antennae - a pair of long, thin body parts used to feel and smell that are found on the heads of insects. (pnc.com)

2014. Cricket antennae shorten when bending ( Acheta domesticus L.). Frontiers in Physiology, Section Invertebrate Physiology 5:1-9. (uci.edu)

The jointed appendages include antennae as well as legs. (newworldencyclopedia.org)

Early members of the group included the giant water scorpions which were the largest of all arthropods, measuring up to 3 meters in length. (thoughtco.com)

Centipedes are multi-segmented arthropods with at least 10 body segments, most of which have 2 legs each (1 on each side). (uky.edu)
Centipedes are long-lived as arthropods go. (cirrusimage.com)
Centipedes are essential predators in our ecosystem, feeding on numerous other arthropods. (osu.edu)
Although the name suggests that centipedes have a hundred legs, these arthropods typically have 15 to over 30 pairs of legs. (osu.edu)

Thanks to their exoskeletons, arthropods became the world's first land animals some 300 million years ago. (scholastic.com)
After all they are both Arthropods i.e. small creatures with exoskeletons and jointed appendages. (walterreeves.com)
arthropod - the group of animals which have exoskeletons made of chitin, segmented bodies and jointed limbs. (monarch.org.nz)

The head of the host, which is covered by a shield that projects anteriorly, bears a long stout uniramous antenna and a chelate limb followed by two biramous appendages. (pnas.org)
biramous -- Arthropod appendages that are biramous have two branches, an outer branch and an inner branch. (berkeley.edu)

This suggests that ants can discriminate small differences in sensory input to the two antennae and these differences influence motor output. (biologists.org)
Sensory appendages that project outside the body, such as arthropod antennae and mammalian whiskers, are physical linkages between an organism and its environment. (biologists.org)
Just as antenna are sensory organs, spiritual antenna signify openness to a sixth sense , intuition, or spiritual reality. (newworldencyclopedia.org)
In most adults, the antenna are sensory organs, but they are used by the nauplius larva for both feeding and swimming. (newworldencyclopedia.org)
On that background, the neuroethology and physiology the stick insect's tactile near-range sense can serve as a model for understanding the significance of the arthropod antenna in sensory-guided behaviour. (scholarpedia.org)

Antennae (singular antenna ) are paired appendages connected to the anterior-most segments of arthropods . (newworldencyclopedia.org)
Antennae are the primary olfactory sensors of insects and are accordingly well-equipped with a wide variety of sensilla (singular: sensillum). (wikipedia.org)
singular: antenna). (scholarpedia.org)

Hence, studies of an outgroup are necessary to polarize derived versus ancestral character states among the arthropods. (royalsocietypublishing.org)

All species of arthropods also share a basic body plan. (scholastic.com)
Erwin suggested that there might be 30 million species of arthropods, implying that for every one that has already been described there are 29 that are unknown, unnamed, and unclassified. (amnh.org)

Arthropod - Animal with its skeleton on the outside, having a segmented body and jointed limbs. (wikibooks.org)
The ability to adapt whole sets of limbs to new challenges is a major part of the success arthropods have enjoyed. (reference.com)

Although the Pauropoda and Symphyla are not, strictly speaking, Diplopoda, these three groups of prosogoneate arthropods are here for convenience considered together. (wikisource.org)
Los ciempiés son artrépodos de la clase Diplopoda, que contiene aproximadamente 10.000 especies en 13 érdenes y 115 familias. (cirrusimage.com)
Millipedes are arthropods in the class Diplopoda, which contains approximately 10,000 species in 13 orders and 115 families. (cirrusimage.com)

This voyeurism revealed that the male antennae have four structures for clinging onto struggling females. (discovermagazine.com)
We recently reported an Expressed Sequence Tag (EST) approach on male antennae of the noctuid moth, Spodoptera littoralis , with which we could identify a large array of chemosensory genes in a species for which no genomic data are available. (ijbs.com)
RNA-seq estimates of gene expression respectively showed up- and down-regulation of 79 and 30 genes in female compared to male antennae, which included up-regulation of 8 ORs and 1 PBP gene in male antennae as well as 3 ORs in female antennae. (jove.com)

This development set the first arthropods apart from their soft-bodied ancestors, and may be what allowed some early arthropods to crawl out of the water without drying out in the open air or sagging under their own weight. (scholastic.com)
This is part of a diversity of complex brooding behaviors in early arthropods heralding the variety that occurs today. (pnas.org)

Friedrich M and Tautz D (1995) Ribosomal DNA phylogeny of the major extant arthropod classes and the evolution of myriapods. (els.net)
Historically, myriapods have been affiliated with virtually every major arthropod group, but only two competing hypotheses for their phylogenetic position currently remain in favour ( figure 1 ). (royalsocietypublishing.org)

Chelicerates have no mandibles and no antennae. (thoughtco.com)

Longicorn beetles are sometimes called long-horned beetles, nicknamed for their very long antennae, or timber beetles, because the larvae tunnel into wood). (amnh.org)
Amy's arthropods are members of the Cerambycidae, a family of beetles that come in many shapes and sizes. (amnh.org)
With beetles alone accounting for about 40% of all described arthropod species, the truly pertinent question is how many beetle species exist. (pnas.org)
Here we compare global species estimates for beetles, insects, and terrestrial arthropods from eight different methods of estimation (here called methods 1-8). (pnas.org)

We determined the open-loop dynamics of a tactile sensor, specifically the antenna of the American cockroach, Periplaneta americana , an animal that escapes predators by using its antennae during rapid closed-loop tactilely mediated course control. (biologists.org)

Together with the antennae they give the centipede an appearance of being 75 to 100 mm (3 to 4 in) in length. (wikipedia.org)
It is easy to determine what class of arthropod you have, but it gets tougher when you want to know what kind of spider, what kind of insect, or what kind of centipede, for instance. (uky.edu)

compound eye -- Found in many but not all arthropods , a compound eye is composed of a large number of small, closely packed simple eyes ( ommatidia ), each with its own lens and nerve receptors. (berkeley.edu)
These arthropods have lost their compound eyes, or sometimes, have no eyes at all. (osu.edu)

2005. Mechanical properties of arthropod structures: engineering the future. (uci.edu)

The Canadian Encyclopedia https://thecanadianencyclopedia.com/en/article/arthropoda/ (accessed August 16, 2018). (thecanadianencyclopedia.com)

Millipedes have 2 antennae, but no venomous fangs. (uky.edu)

When it molts, the arthropod literally bursts its old shell at the seams and backs out of it. (scholastic.com)

The possibility that the small individuals represent a different arthropod, possibly parasitic, which colonized the larger individual, seems less likely. (pnas.org)

2005. Electroantennographic resolution of pulsed pheromone plumes in two species of moths with bipectinate antennae. (uci.edu)
Moths have feathery antennae. (monarch.org.nz)

A bluish line dotted with dark splotches runs through newly discovered arthropod fossils from the early Cambrian period. (csmonitor.com)
He suggests that perhaps the living arthropods have a differently structured nervous system because they have more specialized features than their Cambrian ancestors. (csmonitor.com)
The first arthropod fossils date to the Cambrian @ 555 million years ago (mya). (walterreeves.com)
Lead author of the paper Dr Nicholas Strausfeld, Director of the University of Arizona's Center for Insect Science, said that the fossil brain discovery provides hugely valuable evidence for sorting out how Cambrian fossils line up with living arthropods. (nhm.ac.uk)
Then comes this: "This time - often referred to as the Cambrian explosion - gave rise to many lineages of animals that are still with us, including some of the first mollusks and arthropods. (evolutionnews.org)
Arthropods evolved in the Cambrian period 500 to 600 million years ago. (reference.com)

Evidence of brooding in fossil arthropods is unusual and normally confined to eggs and early juveniles: later stage juveniles are rarely encountered. (pnas.org)
If so, the parent may be a female, although male brood care is known in arthropods (in pycnogonids eggs are carried by the male, which is equipped with ovigers). (pnas.org)
Erwin's statement was based on the assumptions that many arthropods are very picky about where they live and lay their eggs (this is called host specificity) and that there are twice as many arthropods that live only at treetop level as there are that live on the ground. (amnh.org)

Grasshoppers are then placed in the suborder Caelifera with specific characteristics such as the length of antennae and ovipositors, as well as feeding habits and location of the auditory organs, distinguishing the suborder from the katydid and cricket. (reference.com)

Antennae can also locate other group members if the insect lives in a group, like the ant. (wikipedia.org)
Our phylogenetic analysis resolves the new arthropod as a stem-group mandibulate. (pnas.org)
Chengjiangocaris is a member of the order Fuxianhuiida , a group of arthropods that scientists place at the base of the arthropod family tree. (csmonitor.com)
They are an extinct group of arthropods with a fossil record spanning from the Late Silurian to the Middle Triassic. (abdn.ac.uk)
Chelicerates are an ancient group of arthropods that first evolved about 500 million years ago. (thoughtco.com)
Insects are members of a larger group called the arthropods. (britannica.com)
Insects are part of a larger group of animals known as arthropods. (pnc.com)
Arthropods are the largest animal group on the earth. (pnc.com)