Suggested response: Activity of living organisms

A single occurrence of a type of behavior

Set of responses (with different topographies) that produce the same effect on the environment

"...conglomerate of real circumstances in which the organism or reference part of the organism exists"

A physical event, combination of events, or relation among events

A group of stimuli that share specified common elements along formal, temporal, and/or functional dimensions

Stimuli with shared predetermined properties in one or more dimension