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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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The longest a person has survived after a heart transplant is 24 years.
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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.
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The average adult has about 21 square feet of skin.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").