Mercury is a heavy metal that occurs naturally in minerals and rocks. release of mercury from natural sources has been relatively constant over time. however, anthropogenic release of mercury has increased significantly in recent years primarily due to increased fossil fuel mining and combustion. mercury that is released into the air eventually ends up in soils or surface water. once in water, microbes convert mercury into methyl mercury, which is absorbed quickly and concentrated in the tissues of predatory fish such as shark and swordfish. large fish typically concentrate more mercury than small fish. people who eat fish with high methyl mercury concentrations can show tremors, deafness, muscle dysfunction, and attention deficits. pregnant women and children are especially sensitive to methyl mercury's toxic effects. learning disabilities and developmental delays are common in children who have been exposed to significant levels of methyl mercury. based upon the specific health effects described above, mercury would be best classified as a
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Biology, 21.06.2019 22:00, vegeta8375
(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?
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Biology, 22.06.2019 15:30, viktoria1198zz
Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar
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Mercury is a heavy metal that occurs naturally in minerals and rocks. release of mercury from natura...
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