Nicotine has powerful effects on the brain, spinal cord, peripheral nervous system, and heart by stimulating receptors that are sensitive to

Which of the following statements is true regarding adolescent pregnancy in the U.S.?

A) The number of teen pregnancies continues to rise. B) Teen pregnancy statistics only account for those under the age of 16. C) The number of unwed teen mothers who eventually wed the babies' fathers has increased over the past four decades. D) The number of births to unmarried teens has increased over the past four decades.

Suppose Diane and Mark, as first-year students, are assigned dorm rooms right next door to each other. Shortly thereafter, they begin dating, and after college, they wed

The factor that would be MOST responsible for their initial acquaintance is ________. a) the need for affiliation b) shared attitudes and beliefs c) repeated exposure due to proximity d) physical attraction