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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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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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Everyone has one nostril that is larger than the other.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").