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The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by ...
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia (/ ˌ æ n ɪ ˈ m eɪ l i ə /).With few exceptions, animals consume organic material, breathe oxygen, have myocytes and are able to move, can reproduce sexually, and grow from a hollow sphere of cells, the blastula, during embryonic development.
[10] [11] The taxa "animal kingdom" (or kingdom Animalia) and "plant kingdom" (or kingdom Plantae) remain in use by some modern evolutionary biologists. The initial targets of Cavalier-Smith's classification, the protozoa were classified as members of the animal kingdom, [12] and many algae were regarded as part of the plant kingdom. With ...
Obelia is a genus of hydrozoans, a class of mainly marine and some freshwater animal species that have both polyp and medusa stages in their life cycle. Hydrozoa belongs to the phylum Cnidaria, which are aquatic (mainly marine) organisms that are relatively simple in structure with a diameter around 1mm. [1]
Rukwapithecus fleaglei, the only species of the genus Rukwapithecus, is a fossil primate.Known from a single lower jaw preserving four teeth, it is interpreted as the earliest hominoid, a member of the group that includes gibbons, humans, and other apes.
Ophiophagus bungarus, the Sunda king cobra, is a species of king cobra that inhabits areas south of the Kra Isthmus or land bridge joining the Malay Peninsula with the rest of southeast Asia or Indochina.
In biology, a phylum is a taxonomic rank below Kingdom and above Class. "Phylum" is equivalent to the botanical term division. The kingdom Animalia contains approximately forty phyla; the kingdom Plantae contains twelve divisions. Current research in phylogenetics is uncovering the relationships between phyla, which are contained in larger ...
Elephantiformes is a suborder within the order Proboscidea. [1] Members of this group are primitively characterised by the possession of upper tusks, an elongated mandibular symphysis (the frontmost part of the lower jaw) and lower tusks, and the retraction of the facial region of the skull indicative of the development of a trunk. [2]