Light enters the human eye through an opening in the iris called the

Ted is sitting in the campus center when he is suddenly overcome by an intense fear that he had never experienced before. His body seems to be "racing out of control" and he wonders if he is having a heart attack. Ted's symptoms would be called

a) fugue. b) a panic attack. c) a mood disorder. d) depersonalization.

Chimpanzees breast-feed their infants for about ____ years

a. 2 b. 3 c. 4 d. 5