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Author Question: Which are the principles of stage composition? A. focus, balance, proportion, and rhythm B. ... (Read 13 times) |
Asthma cases in Americans are about 75% higher today than they were in 1980.
Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.