Approximately what percentage of adults in the U.S. used some form of CAM during the year 2007?
a. 50%
b. 72%
c. 38%
d. 12%
e. 83%
c
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The physician makes several recommendations for Margaret. Which of the following would be among these recommendations?
a. High-energy supplements b. Low-protein diet c. Extremely limited exercise d. Smoking
Brand names or government grades can be used to specify: a. form
b. quality. c. pricing. d. quantity.
Which of the following observations is an example of a positive correlation?
A. When a group of 6-year-old children increase their physical activity level to 60 minutes a day, the children's muscle mass increases. B. When teenage girls increase their intake of iron-rich foods, the percentage of the girls who have iron deficiency decreases. C. When a population consumes more fruits and vegetables, the percentage of people in that population with scurvy decreases. D. When older adults increase their daily intake of vitamin D, the percentage of the adults that develops infections decreases.
The primary function of the cardiovascular system is
A. destruction of toxic metabolic by-products. B. production of hormones. C. circulation of blood throughout the body. D. protection against infections and immunity.