It has been reported that the dna of the elephant shark has barely changed over the last 420 million years. which statement explains why the elephant shark has not changed over time? many variations existed in the species. several mutations took place in the species. their environment remained fairly constant over time. they were exposed to severe competition for food and a mate.
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It has been reported that the dna of the elephant shark has barely changed over the last 420 million...
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