Zoological terms

Zoological terms

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

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Zoological terms

Protozoa

Zoology; Zoological terms

Literally the first animal; any one of the single-celled eukaryotic organisms that is primarily animal- like in its method of obtaining food

Prototroch

Zoology; Zoological terms

Ciliated ring around the equatorial plane of a free-swimming larvae used for locomotion and for the generation of food bearing currents.

Setae

Zoology; Zoological terms

Attached to each segments of earthworms, no true legs but pairs of bristle that pushes against the ground and enables movement.

Spirotrich

Zoology; Zoological terms

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

Rhynchocoel

Zoology; Zoological terms

Refers to the cavity in which the proboscis lies. Any such body cavity is lined by mesoderm

Critical Habitat

Zoology; Zoological terms

Areas of habitat that are crucial to the survival of a species and essential for its conservation and that have been formally designated as such by rule published in the Federal Register.

Cretaceous Period

Zoology; Zoological terms

The Cretaceous Period (144 - 65 Myr BP) is the third of three periods during the Mesozoic Era. It is preceded by the Jurassic Period and followed by the Tertiary Period.