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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
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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 first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
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The familiar sounds of your heart are made by the heart's valves as they open and close.