The growth of pubic and auxiliary hair in male and female humans is promoted by __________.
A. androgens secreted from the adrenal cortex
B. corticosterone
C. estrogens secreted from the adrenal cortex
D. progesterone
Answer: A
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Which is not a belief which has characterized learning theory in the 20th century?
a. The human mind is malleable. b. The environment is prepotent in shaping the mind. c. Human biology is an important determinant of behavior. d. The human mind has a passive effect on behavior.
A single motor unit usually contains a motor neuron and
A. one muscle fiber. B. both fast- and slow-twitch fibers. C. either fast-twitch or slow-twitch fibers but not a mixture of the two types. D. a muscle spindle.
Which of the following is true?
a. People who fail on a first suicide attempt rarely try it again. b. All suicides are connected to psychological disorders. c. Suicidal thinking accompanies a loss of contact with reality. d. Suicide attempts often occur in response to highly stressful life events.
The division of the nervous system that connects the brain and spinal cord to the rest of the body is the __________ system.
A. peripheral nervous B. endocrine C. central nervous D. secondary nervous