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Author Question: In biological terms, the combination of an X and a Y chromosome establishes a person's sex as _____. ... (Read 15 times) |
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Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
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The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.
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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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More than 4.4billion prescriptions were dispensed within the United States in 2016.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.