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Author Question: In the 1920s, Frederick Griffith conducted an experiment in which he mixed the dead cells of a ... (Read 109 times) |
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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.