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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Cyanide works by making the human body unable to use oxygen.
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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
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In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.