Which is a cost that comes with using coal as an energy source? a. coal will stay plentiful in the united states. b. when burned, coal produces pollutants that are released into the air. c. mining coal improves the environment. d. coal produces less energy than most other energy resources.
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Biology, 21.06.2019 20:00
Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256
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Some substances but not other can cross the (blank) membrane of a cell
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Biology, 22.06.2019 19:20
3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?
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Which is a cost that comes with using coal as an energy source? a. coal will stay plentiful in the...
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