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Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
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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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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.