Like hunger and sex, thirst is regulated by which part of the brain?

a. cerebellum
b. medulla
c. hypothalamus
d. reticular activating system


ANSWER: c

Psychology

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Mildred has to drive across town to help a friend who is experiencing a crisis. It is a time of day when traffic is light, so this should be a fairly simple task. Research into the link between arousal level and task performance suggests that under these circumstances,

a. a fairly low level of arousal should be optimal for this task. b. Mildred's level of arousal will increase as she gets closer to her friend's house. c. a fairly high level of arousal should be optimal for this task. d. a moderate level of arousal should be optimal for this task.

Psychology

Morgana is now 25 weeks pregnant. At this point, the organism growing inside of her would best be classified as a(n)

a. blastula. b. embryo. c. fetus. d. zygote.

Psychology

The hippocampus is a brain structure that is involved in the formation of

a. memories. c. sensations. b. motor movements. d. endorphins.

Psychology

Clarence has cancer and is undergoing chemotherapy treatments, which leave him nauseated and unable to eat much. His doctor prescribes ________ to help relieve the nausea and increase Clarence's appetite

a. amphetamines b. peyote c. marijuana d. mushrooms

Psychology