Animal Physiology

A characteristic that helps an organism survive and reproduce in its environment.

A hormone involved in regulating water balance.

A multicellular, eukaryotic organism belonging to the kingdom Animalia.

An action or pattern of behavior that provides an advantage.

An action taken by an organism in response to environmental conditions.

Features that make an organism more difficult to detect.

The basic structural and functional unit of life.

The process through which cells develop specialized structures and functions.

A part of a regulatory system that processes information and coordinates a response.

A muscle or gland that produces a response.