Approximately what percentage of narcotic abusers becomes dependent?
A. 20%
B. 30%
C. 40%
D. 50%
Answer: D
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Explain how oxygen free radicals are produced during metabolism, and discuss the role of antioxidants in combating these damaging molecules.
What will be an ideal response?
How does a xeromammogram differ from a mammogram?
A) The xeromammogram shows a three-dimensional image of the breast rather than a one-dimensional image. B) The xeromammogram is produced by nuclear medicine technology rather than by x-ray technology. C) The xeromammogram image is printed on dry paper rather than on x-ray film. D) The xeromammogram uses a magnetic field to scan the breast rather than x-ray beams.
A common factor in overuse injuries such as tendinitis is
A. lack of warm-up. B. muscle tightness and inflexibility. C. lack of cool-down. D. lack of exercise. E. skeletal misalignment.
Hrr =
a. MHR ? RHR b. RHR × 2 c. 55 ? (.4 × age) d. MHR ? (RHR × .5) e. RHR + age