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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.
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