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  2. List of animal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_animal_classes

    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 ...

  3. Portal:Animals - Wikipedia

    en.wikipedia.org/wiki/Portal:Animals

    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.

  4. Cavalier-Smith's system of classification - Wikipedia

    en.wikipedia.org/wiki/Cavalier-Smith's_system_of...

    [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 ...

  5. Portal:Animals/Theme - Wikipedia

    en.wikipedia.org/wiki/Portal:Animals/Theme

    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 ...

  6. Loricifera - Wikipedia

    en.wikipedia.org/wiki/Loricifera

    Loricifera (from Latin, lorica, corselet (armour) + ferre, to bear) is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals with 43 described species.

  7. Ctenophora - Wikipedia

    en.wikipedia.org/wiki/Ctenophora

    a Beroe ovata, b unidentified cydippid, c "Tortugas red" cydippid, d Bathocyroe fosteri, e Mnemiopsis leidyi, and f Ocyropsis sp. [17]. Among animal phyla, the ctenophores are more complex than sponges, about as complex as cnidarians (jellyfish, sea anemones, etc.), and less complex than bilaterians (which include almost all other animals).

  8. Obelia - Wikipedia

    en.wikipedia.org/wiki/Obelia

    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]

  9. Culicoides - Wikipedia

    en.wikipedia.org/wiki/Culicoides

    Culicoides is a genus of biting midges in the family Ceratopogonidae.There are over 1000 species in the genus, [1] [2] which is divided into many subgenera. Several species are known to be vectors of various diseases and parasites which can affect animals.