Mass media campaigns are believed to influence a change in health behavior in approximately what percentage of the target audience?
a. 20 percent
b. 10 percent
c. less than 1 percent
d. 15 percent
e. 30 percent
b
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The brain and brain cells, if destroyed by bilirubin deposits, will _____.
A. regenerate in nearly all cases B. regenerate in roughly half the cases C. regenerate haphazardly, leading to brain cancer D. not regenerate E. regenerate immediately
The government agency that regulates food labeling in the United States is the
A. U.S. Dept. of Agriculture (USDA). B. U.S. Food and Drug Administration (FDA). C. U.S. Centers for Disease Control and Prevention (CDC). D. U.S. Dept. of Health and Human Services (HHS).
Maria has been asked to be a subject in a study to determine if additional vitamin A will promote the growth of healthy, strong fingernails. Since she wants the study to be as close to the "ideal" nutrition intervention study as possible, she will want to be sure that:
a. only the researcher knows which participants receive vitamin A. b. all of the participants are between 18 and 25 years of age. c. her chances of getting vitamin A are better than those of anyone else. d. half of the participants get something that looks like additional vitamin A but isn't.
Gerald has restricted his calorie intake while continuing to exercise, and has been losing 1.5 pounds per week. However, when he weighs himself at the end of week 4, he notices he has not lost any weight since last week. What does this likely mean?
a. Gerald's internal thermostat has slowed down his metabolism to prevent fat loss b. Gerald is eating in his sleep at night as a response to deprivation c. Gerald's body is retaining water temporarily as part of the fat-burning process d. Gerald needs to reduce his calorie intake by an additional 500 calories a day