Zoology

Zoology

Contributors in Zoology

Zoology

The process by which an egg (the female gamete) is released from the ovary. In animals other than mammals, with the exception of monotremes, this results in the laying of an egg outside of the body. ...

osculum

Biology; Zoology

The main opening through which filtered water is discharged. Found in sponges.

organ system

Biology; Zoology

Collection of organs which have related roles in an organism's functioning. The nervous system, vascular system, and muscle system are all organ systems.

organ

Biology; Zoology

Collection of tissues which performs a particular function or set of functions in an animal or plant's body. The heart, brain, and skin are three organs found in most animals. The leaf, stem, and ...

notochord

Biology; Zoology

Characteristic of chordates, the notochord is a stiff rod of tissue along the back of the body. In vertebrates, the backbone is deposited around the notochord and nerve cord.

neuron

Biology; Zoology

A specialized cell that can react to stimuli and transmit impulses. A neuron consists of a body which contains the nucleus; dendrites, which are short branches off the body that receive incoming ...