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Author Question: In which group do all the elements have the same number of valence electrons? (Read 46 times) |
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.
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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.