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Author Question: The expression a2 - b2 is called a . (Read 52 times) |
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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The average office desk has 400 times more bacteria on it than a toilet.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.