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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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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.