... are those that do not cause disease, harm or death to another organism. The term is usually used to ...

All of these organisms are part of the normal oropharyngeal flora, which grow slowly (up to 14 days), prefer a carbon dioxide- ... The HACEK organisms are a normal part of the human microbiota, living in the oral-pharyngeal region. The bacteria were ... The HACEK organisms are a group of fastidious Gram-negative bacteria that are an unusual cause of infective endocarditis, which ... Some reviews of medical literature on HACEK organisms use the older classification, but recent papers are using the new ...

The largest organisms now found on Earth can be determined according to various aspects of an organism's size, such as: mass, ... This article lists the largest species for various types of organisms and mostly considers extant species. The organism sizes ... as the known organism with the highest living biomass. It is not known, however, whether it is a single organism with all parts ... If this colony is considered a single organism, then it is the largest known organism in the world by area, and rivals the ...

The smallest organisms found on Earth can be determined according to various aspects of organism size, including volume, mass, ... Largest organisms Largest prehistoric organisms Bennett, Gordon M.; Abbà, Simona; Kube, Michael; Marzachì, Cristina (25 ... They are one of the most common and smallest organisms in the ocean, with their total weight exceeding that of all fish in the ... Nanobes are thought by some scientists to be the smallest known organisms, about one tenth the size of the smallest known ...

These organisms appear to be limited to certain amino acids as carbon and energy source. The storage compound that they use to ... Polyphosphate-accumulating organisms (PAOs) are a group of bacteria that, under certain conditions, facilitate the removal of ... However, the PAOs have many characteristics that other organisms that accumulate polyphosphate do not have, that make them ... store the amino acids that these organisms take up under anaerobic conditions has not been identified. These bacteria have been ...

Omphalotus nidiformis Bioluminescence is the production of light by living organisms. This list of bioluminescent organisms is ...

This is an incomplete list of organisms that are true parasites upon other organisms. (endo = within; parasites that live ...

Model organisms offer standards that serve as the authorized basis for comparison of other organisms. Model organisms are made ... The history of model organisms began with the idea that certain organisms can be studied and used to gain knowledge of other ... Before the use of these simple organisms molecular biologist had comparatively complex organisms to work with. Today these ... These organisms have led to many advances in the past century. Some of the first work with what would be considered model ...

Organisms can live at high altitude, either on land, in water, or while flying. Decreased oxygen availability and decreased ...

... organisms; a nidicolous organism is one which stays at its birthplace for a long time because it depends on its parents for ... In biology, nidifugous (UK: /naɪˈdɪfjʊɡəs/ ny-DIF-yuu-gəs, US: /-jə-/ -⁠yə-) organisms are those that leave the nest shortly ... The opposite of nidifugous organisms are nidicolous (/naɪˈdɪkələs/ ny-DIK-ə-ləs; from Latin nidus "nest" and -colus "inhabiting ...

Ladurner, P; Schärer, L; Salvenmoser, W; Rieger, R (2005). "A new model organism among the lower Bilateria and the use of ... Mustela furo (Ferret), used as a model organism to study influenza A virus infection. Ambystoma mexicanum (Axolotl), used to ... This is a list of model organisms used in scientific research. Phages (infecting prokaryotes): Escherichia virus Lambda (Phage ... Mycoplasma genitalium, minimal organism. Aliivibrio fischeri, quorum sensing, bioluminescence and animal-bacterial symbiosis ...

... is B.F. Skinner's first book and was published in May 1938 as a volume of the Century Psychology ... ISBN 1-58390-007-1, ISBN 0-87411-487-X Ernest R. Hilgard (1939). "Review of B.F. Skinner's The Behavior of Organisms". Journal ... A Celebration of the Behavior of Organisms at Fifty (9 articles). Journal of the Experimental Analysis of Behavior, 50(2), pp. ... B.F. Skinner (1938). The Behavior of Organisms: An Experimental Analysis. Cambridge, Massachusetts: B.F. Skinner Foundation. ...

All organisms are composed of cells (cell theory). Organisms are classified by taxonomy into groups such as multicellular ... The last universal common ancestor (LUCA) is the most recent organism from which all organisms now living on Earth descend. ... "organism". Chambers 21st Century Dictionary (online ed.). 1999. "organism". Oxford English Dictionary (Online ed.). Oxford ... The largest organism in the world may be a fungus carpeting nearly 10 square kilometers of an Oregon forest, and may be as old ...

Oldest organisms, History-related lists of superlatives, Organisms by adaptation, Negligibly senescent organisms). ... Identifying the longest-living organisms also depends on defining what constitutes an "individual" organism, which can be ... Apart from its extreme age, it is also thought to be the world's largest organism by area, at 2,384 acres (965 hectares). A ... This is a list of the longest-living biological organisms: the individual(s) (or in some instances, clones) of a species with ...

The detection of genetically modified organisms in food or feed is possible by biochemical means. It can either be qualitative ... The Cantons of Switzerland perform tests to assess the presence of genetically modified organisms in foodstuffs. In 2008, 3% of ... without using a living organism. It enables the detection of specific strands of DNA by making millions of copies of a target ... usually the junction between the transgene and the organism's original DNA. This approach is ideal to precisely identify a GMO ...

Biomass (ecology) Largest organisms List of longest-living organisms List of organisms by chromosome count Lists of animals ... of all organisms living on Earth. The domain of eukaryotes represent a small minority of the number of organisms; however, due ... This is a collection of lists of organisms by their population. While most of the numbers are estimates, they have been made by ... The total number of undescribed organisms is unknown, but marine microbial species alone could number 20,000,000. For this ...

Sewage treatment plants mix these organisms as activated sludge or circulate water past organisms living on trickling filters ... Most of the organisms involved are derived from the waste, wastewater or water stream itself or from the atmosphere or soil ... The choice of organism depends on the local climate different species and other factors. Indigenous species usually tend to be ... Most organisms involved in water purification originate from the waste, wastewater or water stream itself or arrive as resting ...

As the technology improved and genetically organisms moved from model organisms to potential commercial products the USA ... It is an international treaty that governs the transfer, handling, and use of genetically modified (GM) organisms. It is ... Laws, regulations, and treaties were created in the years following to contain genetically modified organisms and prevent their ... McHughen A, Smyth S (2008). "US regulatory system for genetically modified [genetically modified organism (GMO), rDNA or ...

The traceability of genetically modified organisms (GMOs) describes a system that ensures the forwarding of the identity of a ... Detection of genetically modified organisms Biosafety Clearing House database of unique identifiers Regulation (EC) No 1830/ ... of genetically modified organisms and the traceability of food and feed products produced from genetically modified organisms ... Protocol on Biosafety and in the European Union legislation on the labelling and traceability of genetically modified organisms ...

It is a loose concept, as an organism can be a pest in one setting but beneficial, domesticated, or acceptable in another. ... Many no longer exist as free-living organisms in the outside world, and can therefore be considered to be domesticated. The St ... Some definitions encompass any hazardous or problematic organism, and so often include fungi, oomycetes, bacteria, and viruses ... and the certainty that pesticides would damage many forest organisms other than the intended pests. Forest integrated pest ...

Once the hookworm eggs are fully developed, they infect organisms by crawling through the organism's skin. According to the ... and their presence must be closely correlated with contamination by other faecal organisms. Indicator organisms need not be ... Indicator organisms are used as a proxy to monitor conditions in a particular environment, ecosystem, area, habitat, or ... Various standards exist in order to ensure the safety of all organisms present in the ecosystem, including humans. E. coli is ...

A digital organism is a self-replicating computer program that mutates and evolves. Digital organisms are used as a tool to ... The study of digital organisms is closely related to the area of artificial life. Digital organisms can be traced back to the ... With Avida, digital organism research has begun to be accepted as a valid contribution to evolutionary biology by a growing ... Garwood, Russell J.; Spencer, Alan R. T.; Sutton, Mark D.; Smith, Andrew (2019). "REvoSim: Organism‐level simulation of macro ...

A fastidious organism is any organism that has complex or particular nutritional requirements. In other words, a fastidious ... just because culturing failed to produce the organism of interest does not mean that the organism was absent from either the ... Fastidious organisms are not inherently "weak"-they can flourish and thrive in their particular ecological niche with its ... which instead detect that organism's DNA or RNA, even if only in fragments or spores as opposed to entire cells) or immunologic ...

An aerobic organism or aerobe is an organism that can survive and grow in an oxygenated environment. In contrast, an anaerobic ... Aerotolerant organisms must continue fermentation in the presence of oxygen. Facultative organisms grow in both oxygen rich ... the use of the Pasteur effect can distinguish between facultative anaerobes and aerotolerant organisms. If the organism is ... In a process known as cellular respiration, these organisms use oxygen to oxidize substrates (for example sugars and fats) and ...

In many organisms the juvenile has a different name from the adult (see List of animal names). Some organisms reach sexual ... A juvenile is an individual organism that has not yet reached its adult form, sexual maturity or size. Juveniles can look very ...

Studying model organisms can be informative, but care must be taken when generalizing from one organism to another.[page needed ... What are model organisms? Archived October 28, 2006, at the Wayback Machine NIH model organisms Archived August 22, 2007, at ... The primary reason for the use of model organisms in research is the evolutionary principle that all organisms share some ... C. elegans was the first multicellular organism whose genome was completely sequenced, and as of 2012, the only organism to ...

With beneficial organisms there is a flip side to these helpful organisms and that's the non beneficial organisms. These ... The opposite of beneficial organisms are pests, which are organisms deemed detrimental to the growing process. There are many ... In agriculture and gardening, a beneficial organism is any organism that benefits the growing process, including insects, ... There are many different types of beneficial organisms as well as beneficial microorganisms. Beneficial organisms include but ...

An anaerobic organism or anaerobe is any organism that does not require molecular oxygen for growth. It may react negatively or ... In contrast, an aerobic organism (aerobe) is an organism that requires an oxygenated environment. Anaerobes may be unicellular ... Aerotolerant organisms, which cannot use oxygen for growth, but tolerate its presence. Facultative anaerobes, which can grow ... Aerotolerant organisms are strictly fermentative. In the presence of oxygen, facultative anaerobes use aerobic respiration. In ...

A pioneer organism, also called a disaster taxon, is an organism that populates a region after a (short-term) natural disaster ... Pioneer organisms modify their environment and establish conditions that accommodate other organisms. In some circumstances, ... Mosses usually follow lichens in colonization but cannot serve as pioneer organisms. These common pioneer organisms can have a ... other organisms can be considered pioneer organisms. Birds are usually the first to inhabit newly-created islands, and seeds, ...

A multicellular organism is an organism that consists of more than one cell, in contrast to unicellular organism. All species ... To reproduce, true multicellular organisms must solve the problem of regenerating a whole organism from germ cells (i.e., sperm ... Because the first multicellular organisms were simple, soft organisms lacking bone, shell or other hard body parts, they are ... may have allowed organisms to go from a single cell organism to one of many cells. Genes borrowed from viruses and mobile ...