A) Behavior is defined as what an animal does and how the animal does it.
B) Behavior is usually in response to stimuli in the animal's environment.
C) An example is a bird singing.
D) An animal's behavior is a set of adaptations that equip the animal for survival in a particular environment.
E) What an animal does can be isolated from the way in which the animal lives.

A) imprinting.
B) habituation.
C) classical conditioning.
D) operant conditioning.
E) insight learning.

A) circadian rhythm.
B) environmental stimulus.
C) positive reinforcement.
D) psychological stimulus.
E) sign stimulus.