Answer:
I think it's - A chicken learns that if it pecks on a button, a food pellet will be released into its cage.
Answer:
a. when a cat learns to drool at the sound of a can opener
b. when a dog refuses to play dead
c.when a cat and a dog share the same water bowl
d. when a dog plays dead she gets a treat in order to encourage her to repeat the behavior
Explanation: