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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.