The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Plant
Plant
Absorption of a drug through cell membranes into the bloodstream (systemic circulation). The drug ...
plant diagram
A solution of CaCl2 with concentration of 5.5 M was diluted 10 times, 25 times and 3 times. ...