The change in brain chemistry that offsets the effects of a psychoactive drug is called

Which of the following best describes a "semi-arranged marriage"?

a. Parents introduce a potential mate to their child. If the young person has a favorable impression of the potential mate, they date a few times. If they agree that they are compatible, they marry. b. Parents screen applicants as a potential mate; they convene and discuss the characteristics of applicants with other high status family members, interview top candidates, and select the best one for their child. c. Parents allow their children to date freely, and as their child introduces them to a potential mate, parents screen and interview. After this process, parents provide their child with an official recommendation of who to marry. d. Parents use the Internet to screen and select potential mates for their child. After creating a pool of applicants, parents then facilitate an Internet relationship between potential mates and their child. Based upon the development of relationships that develop, parents select the best mate for their child.

One reason that adolescents go to bed much later than they did as children is that they

A) cannot effectively manage their emotions. B) may have developed an increased neural sensitivity to evening light. C) do not need as much sleep as they did in middle childhood. D) experience a steady increase in impulsivity from ages 12 to 24.