What causes genetic variation in a population?
environmental changes
random mutations
f...
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Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
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In which block of the periodic table is uranium (u) found? s blockd blockp blockf block
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You have a sample of a metal, the sample is exactly 6.02 x 1023atom, if the sample has a mass 55.85 what metal is your sample made of?
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