The primary explanation for the addictive nature of street drugs lies in their impact on the brain's ________ system

a) serotonergic
b) acetylcholinergic
c) dopaminergic
d) endocrinergic


ANS: C

Psychology

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Unlike depression, in mania, ____

a. the mood is elevated, expansive, or irritable b. mood changes occur without any changes in behavior c. the mood remains normal, while the cognitive and behavioral symptoms change d. mood changes do not affect social or occupational functioning

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Explain internal working models and how they affect later relationships

What will be an ideal response?

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About what percentage of males are exclusively homosexual?

(a) .01% (b) .1% (c) 1 - 5% (d) 30%

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About how many mothers in the United States and Canada breast-feed their babies?

A) About 70% B) About 50% C) About 33% D) About 10%

Psychology