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Which is most likely a source of air pollution? littering, CFCs, oil spill , runoff
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Natural selection changes allele frequencies because some survive and reproduce more successfully than others.
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Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?
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Biology, 22.06.2019 23:00
Planning along the natural slope of the land to reduce soil erosion is called
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Which is most likely a source of air pollution? littering, CFCs, oil spill , runoff...
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