About a year after first ejaculation, boys may also begin to
A) have an anovulatory responses.
B) experience nocturnal emissions.
C) develop gynecomastia.
D) grow a beard.
B
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Jeremy and Jamal are twins who were born to alcoholic parents and separated at birth. Each was raised by a different nonalcoholic adoptive family. Which of the following statements accurately reflects Jeremy and Jamal's risk of alcoholism?
A. Jeremy and Jamal have a nearly 100 percent chance of developing an alcohol use disorder. B. Jeremy and Jamal are twice as likely to develop an alcohol use disorder. C. Jeremy and Jamal are not at risk of developing an alcohol use disorder, as neither of their adoptive families drinks alcohol. D. Jeremy and Jamal have the same risk of developing an alcohol use disorder as any other adoptive children.
Group polarization may, in part, stem from
a. an increase in dominant responses under conditions of high arousal. b. lack of group cohesiveness. c. deindividuation of group members. d. the desire to distinguish one's group from other groups.