The Physiological Mechanisms of an Organism Can Modulate Behavior

Multiple Choice

The physiological mechanisms of an organism can modulate behavior.Strictly speaking,these mechanisms

A) can be said to have purpose.
B) can be traced or linked to certain functions.
C) are thought to be different from species to species.
D) are not thought to be subject to evolution.
E) are present at birth and do not require environmental stimulation for complete expression.