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Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
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Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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Cyanide works by making the human body unable to use oxygen.
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