An Element of an Action or Object That Triggers an Action

Question

An element of an action or object that triggers an action pattern is:
A) a releaser.
B) fixed.
C) stereotyped.
D) a reflex.

Accepted Answer

A releaser is a specific stimulus that triggers a fixed action pattern in animals. This term is used in ethology to describe an environmental cue that initiates a specific, innate behavior.