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Did you know?
The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.