What part of the United States has a lower percentage of persons under age 15 and a higher percentage over age 65 compared to national averages?
a. Northeast
b. West
c. South
d. Midwest
e. Northwest
a
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Which best describes an echocardiogram, which may be used to diagnose heart disease?
a. Radionucleotides attached to red blood cells allow for visualization of the heart while beating b. Vital signs are measured after a session of prescribed exercise on a treadmill c. A technician takes a graphic recording of the heart's electrical activity d. A catheter is inserted from an appropriate artery or vein into the ventricle e. Sound waves are used to document anatomy and function of the heart
The tiny mineral crystals that cluster around collagen fibers in bone are called
A. osteoclasts. B. hydroxyapatite. C. trabecular. D. osteoblasts.
One of the biggest concerns for vegetarians is not getting enough of certain nutrients. Which of the following is usually NOT considered a nutritional concern for vegetarians?
A. vitamin D B. vitamin C C. vitamin E D. vitamin B12
A 25-year-old man weighs 154 pounds and consumes 2,700 kcalories with 45 grams of protein a day. If two-thirds of the protein comes from animal sources, it may be concluded that he:
a. ingested his recommended allowance of protein. b. needs 8 grams more protein to meet the recommended allowance. c. needs 11 grams more protein to meet the recommended allowance. d. has exceeded his recommended allowance of protein.