According to sociobiologists, males typically have a large biological investment in each pregnancy they produce

Eleven-year-old Julie and 12-year-old David are dating. Which of the following is most likely true of this relationship?

A. They go out in group settings. B. They go out with their parents. C. They go out by themselves. D. They go on casual dates.

Andy is about to start a new job. As part of the pre-employment screening, he has to undergo extensive medical testing that requires many hours. As a result, physicians find that he secretes a high level of cortisol

What might we conclude from this result? a) He is driven and likely to have ulcers. b) His body is trying to fight off HIV infection, but it is losing. c) He is likely to be hostile and have an elevated risk of heart disease. d) His body does not digest fats very well, so he has a high risk of obesity.