Zoological terms

Zoological terms

Terms in relation to animals, such as mammals, birds, reptiles or fish.

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Zoological terms

spirotrich

Zoology; Zoological terms

Order of ciliated protozoa; have cilia cells around the cytostome and few elsewhere on the body

deuterostomes

Zoology; Zoological terms

(Gk. deutero, real) An animal in which the blastopore becomes the anus, while the second opening becomes the mouth ; hemichordates, echinodermata, and chordates; usually notoneuralia with chord ...

(Gk. proto, first) Any bilateral animal whose first opening in the embryo (deriving from blastopore) becomes the mouth and the second opening the anus; also characterized by spiral cleavage during ...

symbiosis

Zoology; Zoological terms

(Gk. syn together with; bios, life) A long-term association with other organisms, sometimes limited to another single species which can be commensal, mutualistic, and parasitic.

facultative s.

Zoology; Zoological terms

If both members are found separately, this is call facultative S

obligate s.

Zoology; Zoological terms

For members which are never found living independently. The smaller member, symbiont, is described as an ecto-symbiont or endo-symbiont according to whether it resides on the outside or inside of the ...