The most important hormone in the development of female sexual characteristics is:
A. estrogen
B. progesterone
C. testosterone
D. luteinizing hormone
Answer: A
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The single best predictor of a child's risk for Major Depressive Disorder is ____
a. drug use b. family history of depression c. psychosocial problems d. academic problems
Underproduction of acetylcholine has been linked with Alzheimer's disease
Indicate whether the statement is true or false
When placed in a cage with a soft cloth "mother" and a wire "mother" equipped with a feeding nipple, socially isolated rhesus monkeys:
A) spent more time hanging on the soft cloth mother, even though the wire mother provided nourishment. B) spent more time hanging on the wire mother, primarily because it was equipped with a feeding nipple. C) refused to eat altogether. D) refused to spend any time on the soft cloth mother because it offered no nourishment.
A _____ reinforcer is effective because of its very nature, while a _____ reinforcer is effective only after it has been associated with a primary reinforcer
a. large; small b. generalized; automatic c. primary; conditioned d. learned; instinctive