Answer:
Personally I think the 3rd one would be the best revised
Explanation: While the others are well put this one puts everything into correct context and where it makes the most sense.
Again not 100% sure been awhile since I took English, but it sounds right to me.
Answer and Explanation:
According to the paragraph, "Hueter believes the teeth are vestigial, an evolutionary leftover from the whale shark's ancestor." This explains why the whale shark does not bite or chew. A vestigial structure or organ is an anatomical feature that remains even though it no longer has use for the more evolved creature. An example of vestigial organ in humans is the appendix. In the case of the whale shark, the teeth are vestigial structures - they no longer function, but have remained as a leftover of evolution. That is why the whale shark cannot use them to bite or chew.
You haven't even mentioned WHICH poem.
We don't stand a chance out here.
It's d because all others have a conjuncyion