Zoological terms

Zoological terms

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

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Zoological terms

Ecto derm

Zoology; Zoological terms

The outermost of the three germ layers of the early embryo; gives rise to epidermis of the skin and nervous system ( gastroneural-tube in protostomia; notoneural-tube in deuterostomia)

Epi dermis

Zoology; Zoological terms

(Gk. epi, upon; desma, skin) The outermost layer of cells of an organism (integument); consisting of a single layer of epithelial cells.

Gastro dermis

Zoology; Zoological terms

Ephithelial tissue lining the gut cavity; in cnidarians does digestion and absorption

Epifauna

Zoology; Zoological terms

Those living organisms that inhibit the surface of water and sediments

Long, stiff feathers that are often found near a bird's mouth or eyes. The function of bristles is not well-understood and it is thought they may serve to funnel food into a bird's mouth or provide ...

Breeding system

Zoology; Zoological terms

The type of breeding behaviours characteristic of a population (polygyny, outcrossing, or selective mating) and the ways in which members of the population adapt to these breeding behaviours

Blowhole

Zoology; Zoological terms

A hole on top of a cetacean's head through which air is inhaled and exhaled. The blowhole is found on top of the head so as to prevent water from flowing into the lungs.