The horizontal fraction bar was introduced by the Arabs.
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About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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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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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
A true albino squirrel. Note the pink eyes.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
True Forget-Me-Not
A recruiting poster for the “True Sons of Freedom” encouraged African Americans to enlist. In fact,