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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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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
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The average office desk has 400 times more bacteria on it than a toilet.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.