Purines: adenine and guanine
Thermal pollution is when the water temperature goes from one extreme to another whether cold to hot or hot to cold, so I would say B.
On the other hand typical human contains app. 50 trillion cells<span>
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Answer:
C) male-male competition; sexual conflict and antagonistic coevolution
Explanation:
Male-male competition happens when two males of a species fight for the opportunity to mate with a specific female.