The recommended duration for the high-impact aerobics portion of a class is

a. 12–15 minutes.
b. 20–30 minutes.
c. 30–40 minutes.
d. 45–60 minutes.
e. 60–90 minutes.


b. 20–30 minutes

Health & Biomechanics

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If your primary care physician is unwilling to give you valid information regarding the safety and effectiveness of a given treatment, you need to

a. educate the doctor. b. educate yourself. c. find another doctor. d. sue the doctor.

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The anabolic process of metabolism breaks down complex substances into simple substances.

a. true b. false

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