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Biology, 22.06.2019 02:30, sabrinarasull1pe6s61
Ecologist have observed a sharp increase of sulfur dioxide in the air . what might be a possible consequence of excessive sulfur dioxide in the air ? a. acid rain b. ozone layer depletion c. ozone layer hole d. increase in sea levels
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Biology, 22.06.2019 02:50, cocodemain
Cells destroy body cells infected by a virus or bacteria.
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How are somatic system cells different from embroyic stem cells?...