When does a professional athlete's career peak, in terms of physical fitness?

A. 30s
B. 40s
C. early 20s
D. late teens


Answer: A

Psychology

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Caffeine is excreted from the body mainly ____________

a. in the feces b. in saliva c. by the kidneys d. in pure form

Psychology

When identical twins are raised together in the same home, and they show different susceptibilities to a given psychological disorder, it indicates that:

a. environmental factors influence the expression of the disorder b. genetic factors have more influence than environmental factors in the disorder c. both genetics and environmental factors contribute equally to the disorder d. neither genetic factors nor environmental factors contribute to the disorder

Psychology

In men, the ____________________ occurs after the completion of a sexual response cycle, when stimulation fails to produce arousal or orgasm

Fill in the blank(s) with correct word

Psychology

Which of the following is a possible null hypothesis for a correlational study?

A. ?xy? 0 B. ?xy> 0 C. ?xy< 0 D. rxy = 0

Psychology