According to the U.S. Surgeon General, adolescents need approximately how many minutes of moderately intense exercise per day?

A) 15 B) 30 C) 60 D) 90

Answer: B

Psychology

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By 8 weeks of age, infants show signs of day/night sleep rhythms. What are these rhythms called?

A) Biorhythms B) REM C) Sleep cycling D) Circadian rhythms

Psychology

Interviews that are specifically designed to assess recent and lifetime problems with respect to substance use are referred to as

a. motivational interviewing. b. clarification interviews. c. prognosis interviewing. d. screening interviews.

Psychology