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Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
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In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.
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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
B, The nurse teaches the postoperative client to use an incentive spirometer to expand the lungs.
Effect of the chemical environment on pKa
The first commercially successful typewriter, manufactured in quantity beginning in 1874, surely fue
Human Activities and the Environment
Selective pressures from the environment influence adaptation
Essential Environment