A targeted mutation that blocks the production of CB1 receptors:
a. promotes the reinforcing effect of cannabinoids.
b. abolishes the reinforcing effect of morphine.
c. promotes the reinforcing effect of heroin.
d. abolishes the reinforcing effect of cannabinoids, morphine, and heroin.
Answer: D
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The events in the menstrual cycle are best described as
a. reactions to specific levels of estrogen. b. controlled primarily by the hypothalamus, which produces both estrogen and progesterone. c. a series of bodily changes that lead to behavioral and mood changes. d. a feedback loop involving changes in brain structures, hormones, and reproductive structures.
Secondary or acquired drives are best explained as what?
In a review of research it was estimated that ________ children are seven times more likely to suffer from social anxiety disorder
A. inhibited B. impulsive C. uninhibited D. fearless
Paradoxical sleep is another term for
a. Stage N2 sleep b. Stage N3 sleep c. Stage N1 sleep d. REM