Scientists are uncertain whether ________ is an essential mineral for humans.
A. zinc
B. iodine
C. magnesium
D. silicon
Answer: D
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The benefits of physical activity include all of the following except
A) more restful sleep. B) the reduced risk of certain chronic diseases. C) improved immune function. D) decreased HDL levels.
Which statement describes a characteristic of food serving sizes?
a. Serving sizes for most foods have not yet been established by the FDA b. The serving size for ice cream is 2 cups and the serving size for all beverages is 12 fluid ounces c. Serving sizes on food labels are not always the same as those of the USDA Food Patterns d. Serving sizes must be listed in common household measures, such as cups, or metric measures, such as milliliters, but not both e. Manufacturers are free to set their own serving sizes as long as they specify what the serving size is.
Athletes should consume _____ ounces of fluid prior to exercise.
A. 4–6 B. 6–8 C. 8–10 D. 10–12 E. 12–14
Obese women have a higher risk of breast cancer than lean women because:
a. excess adipose tissue raises levels of estrogen in the body. b. obese women eat high-fat diets. c. lean women exercise more. d. lean women have higher estrogen levels after menopause.