Which of the following statements is true of natural sexual behavior?
A. It is a sexual behavior that satisfies one's psychological desires.
B. It conforms to a culture's sexual norms.
C. It excludes sexual activity that is not heterosexual in nature.
D. It is consistent across cultures.
Answer: B
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Dr. Caster decides to perform an experiment investigating the effects of caffeine and sugar on motor skill performance. He randomly assigns his subjects to one of four groups: high caffeine/high sugar, high caffeine/no sugar, no caffeine/high sugar, no caffeine/no sugar. People in each group are given a soft drink containing the appropriate levels of sugar and caffeine, and then tested on a
mirror tracing task. Dr. Caster finds that the people in two of the groups (the high caffeine/high sugar and the no caffeine/no sugar) perform at about the same high level, while the other two groups (the no caffeine/high sugar and high caffeine/no sugar) perform at about the same poor level. Dr. Caster's results show a. a main effect of caffeine b. a main effect of sugar c. a synergistic interaction d. an antagonistic interaction
Diane works in a bar where there is always heavy smoke from cigarettes
Her husband is worried about her exposure to tobacco smoke. Diane tells him not to worry, it is unpleasant to smell, but other people's smoke can't really hurt her. Who is right? a) Diane, because she herself is not a smoker. b) Her husband, because second-hand smoke exposure doubles the risk of a heart attack. c) Who knows? There is no definitive research. d) It only matters if Diane is pregnant.
Which of the following types of brain activity are present during stage 2 sleep?
a. Theta waves b. Sleep spindles c. Alpha waves d. Beta waves
What evolutionary theory suggests that men should be more jealous than women of potential sexual infidelity?
A. high parental investment B. low parental investment C. paternity uncertainty D. maternity uncertainty