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Author Question: Which process is the first step in the formation of urine in the nephrons? A) Absorption B) ... (Read 26 times) |
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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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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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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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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.