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Author Question: The most notable physical variations among human populations are those that are a. internal. b. ... (Read 19 times) |
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The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
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There are more bacteria in your mouth than there are people in the world.
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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.