The _____ nervous system is most active when the body is in the process of storing energy for future use

Chapter 8 discusses several studies of marital satisfaction. These studies indicate that

a. young married couples are probably the happiest people in any age group. b. marital satisfaction drops quickly after the newlywed period, but then levels off for the remainder of the marriage. c. women's marital satisfaction reaches a low point when their children leave home. d. intimacy, physical affection, and shared activities all increase over the first 20 years of marriage.

The hypothesis predicting that differences exist between the groups being compared is the _____ hypothesis, and the hypothesis predicting that no differences exist between the groups being compared is the _____ hypothesis

a. null; alternative b. alternative; null c. one-tailed; two-tailed d. two-tailed; one-tailed