1. This book takes the……………………………………. science approach to behavior, the approach that focuses on identifying physical events that affect behavior. 2. One reason that many learning studies use animals...

1. This book takes the……………………………………. science approach to behavior, the approach that focuses on identifying physical events that affect behavior.

2. One reason that many learning studies use animals is that with animals it is possible to control ……………………………………. .