Since the epidemic began, the proportion of AIDS diagnoses among Whites has
A. increased and that among Blacks has decreased.
B. increased and that among Blacks remained the same.
C. remained the same and that among Blacks has decreased.
D. decreased and that among Blacks has increased.
Answer: D
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Which hormone controls the rate at which glucose leaves the blood and enters the cells?
A. CCK B. Aldosterone C. Glucagon D. Insulin
Tess has been having trouble sleeping, so she wants to try melatonin. Before she does, she checks the recent National Institutes of Health report on melatonin. What will she learn?
a) There is little evidence for melatonin's efficacy in treating insomnia. b) Melatonin is effective in reducing sleep latency and increasing total time asleep. c) The dose required to achieve an effect is close to toxic levels, so it is best to avoid melatonin. d) Melatonin affects sleep by relaxing the muscles, but the same effect can be achieved by a warm bath.
Select the statement about cyclothymic disorder that is TRUE
A) It is less severe than bipolar disorder and causes no impairment. B) It is diagnosed if present for a three-month period. C) It features alternate moods of hypomania and depression. D) It has chronic, unremitting psychotic features.
Renan and Mai are injecting cocaine. Renan injects himself in his thigh muscle, and Mai injects herself just under the skin on the back of her hand
Who will absorb the cocaine into their bloodstream faster, and what is the correct term for their form of administration? a) Renan; intramuscular injectio b) Mai; subcutaneous injection c) Mai; intramuscular injection d) Renan; subcutaneous injection