Julie finds that the more she sleeps on the eve of an exam, the higher the score she gets on the exam. There is __________ correlation between the amount Julie sleeps and her exam scores
a. a negative
b. a positive
c. a perfect
d. no actual
Answer: b
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Studies of nonhuman language abilities call attention to the ____
a. ability of many species to learn language b. close relationship between language and classical conditioning c. difficulty of defining language d. close relationship between language and brain size
Mrs. Watanabe is depressed. Her levels of serotonin and norepinephrine are quite low. What processes might account for this? a. The amount of reserpine in her brain is deficient
b. She was given cortisol when taking the dexamethasone suppression test. c. She does not have enough of the enzyme monoamine oxidase. d. There is excessive reuptake of various neurotransmitters in her brain.
What causes the undifferentiated (or indifferent) gonads to become the testes?
A. Müllerian-determining factor B. a protein made from the SRY gene C. ovarian-inhibiting substance D. a neurotransmitter released from the inactive X in an XX-fertilized ovum
The drive-reduction theory rests on the idea that our bodies strive to maintain _____
a) optimal arousal. b) basic needs. c) homeostasis. d) a hierarchy of needs.