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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
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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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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.