If you could remove all of your skin, it would weigh up to 5 pounds.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
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Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
The Dingo was the first placental mammal introduced to Australia, around 4000 years ago
Illustration of the Milky Way galaxy, showing the location of the Sun
The muscular system.
The components of the respiratory system with micrographs of the respiratory epithelium and alveoli. ...