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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Blood is approximately twice as thick as water because of the cells and other components found in it.
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People about to have surgery must tell their health care providers about all supplements they take.
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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.