Bertram suffers from schizophrenia with symptoms of catatonia. Sometimes he seems to "freeze up" in an unusual body position for hours at a time. This particular symptom is called

You are watching a sleeping person and notice that her eyes are darting about under the eyelids. What prediction would you make?

a) She is dreaming. b) She has just fallen asleep. c) She is in a deep sleep stage. d) She has taken a sedative in order to fall asleep.

Gina's mother and father are both obese. Generalizing from research presented in the text, what chance does Gina have of becoming obese?

a. 10% b. 20% c. 40% d. 80%