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The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?
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Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen
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What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.
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What does the rough endoplasmic reticulum do?...
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