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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.