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Author Question: Of all of the chordate groups, why are there only two amniote groups (reptilia and mammalia)? (Read 33 times) |
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The average adult has about 21 square feet of skin.
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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").