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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.
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There are 20 feet of blood vessels in each square inch of human skin.