InvertebratesPolychaetaVertebratesCaenorhabditis elegansAnnelidaMolluscaOligochaetaAquatic OrganismsSchistosoma mansoniMolecular Sequence DataEchinodermataChordata, NonvertebratePhylogenyCrustaceaUrochordataCaenorhabditis elegans ProteinsLarvaAmino Acid SequenceArthropodsBivalviaCnidariaEvolution, MolecularHelminth ProteinsParasite Egg CountCiona intestinalisBiological EvolutionPhotoreceptor Cells, InvertebrateMarine BiologyGastropodaGanglia, InvertebrateNematode InfectionsDrosophila melanogasterSpecies SpecificityHelminthsInsectsNematodaSequence Homology, Amino AcidPlatyhelminthsEcosystemSea CucumbersTrematode InfectionsAnthelminticsLymnaeaAmphipodaHemocytesFood ChainSequence AlignmentInvertebrate HormonesDrosophila ProteinsDrosophilaChordataSchistosomiasis mansoniFilarioideaPoriferaBase SequenceCephalopodaBrachyuraTrematodaFishesHost-Parasite InteractionsEye Infections, ParasiticBryozoaLife Cycle StagesMytilusDaphniaGenes, HelminthAscarisOceans and SeasAnimals, Genetically ModifiedSnailsLeechesBiodiversityBiomphalariaAstacoideaHorseshoe CrabsDracunculus NematodeThoracicaEchinostomiasisStrongylida InfectionsGene Expression Regulation, DevelopmentalConserved SequenceRotiferaSeawaterCloning, MolecularLongevityOctopamineFilariasisNephropidaeDracunculiasisEmbryo, NonmammalianDNA, ComplementaryOvumPraziquantelInsect ProteinsHemolymphAnthozoaIsopodaEchinostomaDNA, HelminthSchistosoma