Eating carbohydrates before bed may promote sleep, because carbohydrates raise brain levels of tryptophans, which
a. are serotonergic antagonists
b. are precursors for the synthesis of serotonin.
c. are a form of serotonin.
d. prevent the reuptake of serotonin.
b
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Betsy paces herself in her work, tends to be less impatient, and also tends to be less ambitious. She fits a __________ pattern
a. Type A. c. Type C. b. Type B. d. Type D.
Chromosomes contain thousands of segments called:
a. nuclei. c. phosphates. b. genes. d. cytosines.
______ statements are those that are either true or false.
A. Syllogistic B. Relevant C. Propositional D. Conditional
In Erikson's advice on aging, which of the following does he recommend?
A. Be willing to give and receive help as needed. B. Hang on to your possessions. C. Use your pride to remain independent. D. Keep striving toward new achievements and levels of excellence.