At times, for unknown reasons, a zygote divides into two cells. The result of this is __________

Which of the following is true concerning Tolman and Honzik's classic study of latent learning?

A) Rats were able to learn without receiving reinforcement. B) Rats learned when receiving punishment but not when receiving reinforcement. C) Rats were not able to learn if reinforcement was withheld for long periods of time. D) Rats learned only when reinforcement was presented immediately following behavior.

Hillary has a history of behavior problems and conflicts with her parents. Now, she is in sixth grade and is the first girl in her class to attain sexual maturity. When compared to later-maturing girls, Hillary is more likely to:

a. develop positive communication patterns with her parents. b. have a positive body image and gain prestige for athletic skills. c. drop out of school and have emotional problems. d. be socially unpopular for being "off-time" in maturation.