Answer:
D. A signal is sent down an exon within a nerve cell
Explanation:
Answer:
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger.
Explanation:
I think B is the correct answer. Answer choices C & D are about dolphins, but they do not have anything related to negative effects surrounding human and dolphin interaction. A, on the other hand, may seem like a good choice, but then again, the answer is too vague.
