Children, ages 6 years and older, should be encouraged to engage in at least _____
a. 15 minutes of physical activity every day
b. 20 minutes of physical activity 5 days a week
c. 30 minutes of physical activity 3 days a week
d. 45 minutes of physical activity 5 days a week
e. 60 minutes of physical activity most days of the week
e
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What are unstable oxygen-containing molecules that can damage cells called?
A. antioxidants B. cataracts C. coenzymes D. free radicals
What are symptoms of lactic acidosis?
a. abdominal pain, vomiting, rapid breathing b. high fever, sore throat, dehydration c. headache, shallow breathing, chest pain d. vomiting, diarrhea, hypertension e. high fever, anorexia, hypotension
Which of the following body fat assessment techniques relies on the principle that lean tissue is denser than water?
A. Air displacement B. Dual-energy x-ray absorptiometry C. Bioelectrical impedance D. Underwater weighing
Human milk is naturally a rich source of ________.
A. lipids B. vitamin D C. fluoride D. iron