What is Darwin's name for species that do not appear to have changed for millions of years?
a....
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An atom of nitrogen had seven protons in its nucleus. how many electrons does it have
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Which sentence best expresses the differing opinions of these two book reviews?
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What would be the most likely result if the ph of the stomach were increased to 5
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Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth
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