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The average office desk has 400 times more bacteria on it than a toilet.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Oocyte maturation in certain species of frogs Oocyte maturation in certain species of frogs
Connell's experimental manipulation of species indicated the presence of competition. Connell's experimental manipulation of species indicated the presence of competition.
Several species of squirrels have melanistic phases. In large parts of United States and Canada, the Several species of squirrels have melanistic phases. In large parts of United States and Canada, the
Structure of tRNAs: A human mitochondrial tRNA for lysine Structure of tRNAs: A human mitochondrial tRNA for lysine
Comparison of the human LEP and mouse ob/Lep genes Comparison of the human LEP and mouse ob/Lep genes
Main components of the human endocrine system and the effects of their secretions Main components of the human endocrine system and the effects of their secretions
Video: Cavernous Sinus Larynx Middle Ear Orbit: Granulesm Animation

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