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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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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
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The horizontal fraction bar was introduced by the Arabs.
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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.