B . Excessive commercial fishing
Reason: the other options are good things this is the only bad thing
Number 4 should be mitosis
Well, I know logically that both life and environment change over time. So I think the answer would be C, studying fossils shows us that both life and environments change over time. Hope this helps.
C. The answer should be c, seeing as how bacteria die under high heat.
Does that mean in order? if not the answer is C
