________ is the primary neurotransmitter secreted by motor axons of the CNS
a. Dopamine
b. Norepinephrine
c. Acetylcholine
d. Serotonin
e. GABA
Answer: c. Acetylcholine
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What happens to the suicide rate for men in late adulthood?
A. It significantly declines. B. It declines somewhat compared to men in middle adulthood. C. It climbs steadily, especially for men over the age of 85. D. It is less than for women in late adulthood.
A researchers uses falsification when _____.
A. equalizing the make up of each group B. attempting to prove the hypothesis is incorrect C. observing interactions between experimenters and researchers D. removing potential research bias
Presidents whose inaugural speeches indicated a high need for Achievement are usually rated by historians as ineffective leaders
Indicate whether the statement is true or false
When the type of environment varies, reaction ranges tend to
a. be constant, regardless of the child's genetic potential. b. be widest for children of weak genetic potential. c. be widest for children of strong genetic potential. d. vary unpredictably.