1. Stimulants _____ nervous system activity, whereas depressants _____ it. (Points : 2)

reduce; enhance

enhance; increase

increase; decrease

reduce; decrease

2. The life expectancy of the average cigarette smoker is reduced by (Points : 2)

1 - 5 years

5 - 10 years

10 - 15 years

15 - 20 years

3. The process by which experience or practice results in a relatively permanent change in behavior is known as _____. (Points : 2)

cognition

learning

imprinting

intelligence formation

4. In classical conditioning, _____ are important, while in operant conditioning, _____ are primary for learning. (Points : 2)

antecedents; consequences

consequences; antecedents

responses; reflexes

responses; antecedents