The classic research of Martha McClintock documented the existence of a phenomenon known as _____: the convergence, over several months, of the dates of onset of menstrual periods among women who are in close contact with each other.
A. hypermenorrhoea
B. premenstrual syndrome (PMS)
C. amenorrhea
D. menstrual synchrony
Answer: D
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Which of the following is legal only in some counties of the United States?
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A. Castrated sex offenders cannot restore their sex drives with artificial testosterone. B. Chemical castration is 100 percent effective in preventing the repetition of sexual offenses. C. Sex offenders should receive intensive psychotherapy alongside castration to prevent future offenses. D. Physical castration has no effect on libido in sex offenders in the long run.