The horizontal fraction bar was introduced by the Arabs.
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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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."
Permafrost is found in much of Northern Canada
Gene sites sensitive to mutation
Peripheral Pulse Sites
Habitat reconstruction is possible based on the kinds of plants present at past sites.