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Author Question: Today in the U.S., 12th-grade girls are actually more likely to be sexually active than 12th-grade boys. (Read 77 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
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On average, the stomach produces 2 L of hydrochloric acid per day.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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The longest a person has survived after a heart transplant is 24 years.