_________ compares behavior in two different situations or conditions, but the researcher does not randomly assign people to the different situations.

According to behaviorists, __________ is any relatively permanent change in an organism's behavior that occurs because of experience

a. extinction c. acquisition b. higher-order conditioning d. learning

Assume that energy expenditure is proportional to body weight. You forage every day for a constant amount of food (all of which you eat). Further, you find more food energy than your initial metabolic requirements. Which of the following will

definitely happen? a. You will have children. b. Your metabolic rate will increase to adjust output to intake. c. Your BMI will increase d. The exercise of foraging will prevent leptin resistance e. Your body weight set point will change