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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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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
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The familiar sounds of your heart are made by the heart's valves as they open and close.