Answer:
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Explanation:
<span>Catfish and carp require less oxygen than trout. The mouth of a river usually has less oxygen and the area closer to the source has more oxygen, so since catfish and trout require more oxygen they typically are found at the source.</span>
Answer:
c. they give birth to similar organisms that can be slightly different
I believe your answer would be A. Hope this helps!
A. cancer, cancer causes rapid cell division which results in tumors and the like.
