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Acanthocorbis
''Acanthocorbis'' is a genus of choanoflagellates within the family Acanthoecidae Acanthoecidae is a family of choanoflagellates. Its subgroups Diaphanoeca and Stephanoeca bear lorica composed of silica which possibly originate from diatoms via horizontal gene transfer Horizontal gene transfer (HGT) or lateral gene tran .... Species References Choanoflagellate genera Taxa described in 1984 Opisthokont genera {{Holozoa-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthoecidae
Acanthoecidae is a family of choanoflagellates. Its subgroups Diaphanoeca and Stephanoeca bear lorica composed of silica which possibly originate from diatoms via horizontal gene transfer Horizontal gene transfer (HGT) or lateral gene transfer (LGT) is the movement of genetic material between organisms other than by the ("vertical") transmission of DNA from parent to offspring (reproduction). HGT is an important factor in the e .... Genera '' Acanthocorbis'' - '' Acanthoeca'' - '' Amoenoscopa'' - '' Apheloecion'' - '' Bicosta'' - '' Calliacantha'' - '' Calotheca'' - '' Campyloacantha'' - '' Conion'' - '' Cosmoeca'' - '' Crinolina'' - '' Crucispina'' - '' Diaphanoeca'' - '' Diplotheca'' - '' Kakoeca'' - '' Monocosta'' - '' Nannoeca'' - '' Parvicorbicula'' - '' Platypleura'' - '' Pleurasiga'' - '' Polyfibula'' - '' Polyoeca'' - '' Saepicula'' - '' Saroeca'' - '' Savillea'' - '' Spiraloecion'' - '' Stephanacantha'' - '' Stephanoeca'' - '' Syndetophyllum'' References Ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Choanoflagellate
Choanoflagellates are a group of free-living unicellular and colonial flagellate eukaryotes considered to be the closest living relatives of animals. The name refers to the characteristic funnel-shaped "collar" of interconnected microvilli and the presence of a flagellum. Choanoflagellates are found globally in aquatic environments, and they are of particular interest to evolutionary biologists studying the origins of multicellularity in animals. The flagellum of choanoflagellates is surrounded by microvilli at its base. Movement of the flagellum creates water currents that can propel free-swimming choanoflagellates through the water column and trap bacteria and detritus against the microvilli, where these foodstuffs are engulfed. This feeding plays an ecological role in the carbon cycle by linking different trophic levels. Choanoflagellates bear morphological similarities to the choanocyte, a type of cell in sponges. As the proposed sister group to Animalia, choanoflagellate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. Other ways of defining species include their karyotype, DNA sequence, morphology (biology), morphology, behaviour, or ecological niche. In addition, palaeontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. About 14% of these had been described by 2011. All species (except viruses) are given a binomial nomenclature, two-part name, a "binomen". The first part of a binomen is the name of a genus to which the species belongs. The second part is called the specific name (zoology), specific name or the specific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Described In 1984
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
