Which hormone reduces appetite and increases the feelings of being full when it is released into the bloodstream?
A) polypeptide
B) insulin
C) leptin
D) glucose
Answer: C) leptin
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In order to have an effect, drugs used to treat psychological disorders must be able to:
A) reduce neurotransmitter activity in the brain. B) increase neurotransmitter activity in the brain. C) cross from one side of a synapse to the other. D) cross the blood-brain barrier.
A ________ is a study in which the assignment of participants to experimental groups is determined by their natural experiences
a. field experiment c. quasi-experiment b. meta-analysis d. structured observation
William and Virginia are discussing the sexual response cycle. William says, "It really isn't fair that women can have orgasm after orgasm after orgasm after orgasm! We men have our orgasms and then have to wait around a while before we can have another one." Virginia says, "That is just the way things are-women don't really have a ________."
A. plateau phase B. feedback loop C. refractory period D. resolution phase
What is particularly significant about the five factor trait theory?
A. It proposes a reasonable number of well-defined personality factors that lend themselves to further research. B. It employs factor analysis which makes analysis more comprehensive. C. Its five factors may represent universal personality components in both humans and other species. D. It further refines the personality factors identified in other trait theories.