Answer:
I believe it would either be A or D hope that helps sorry not much help
Answer: I have no idea
Explanation: This question does not have enough information for me to answer it.
<span>The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.</span>
the correct arrangement of the above sentences is as follows: sentence 3- sentence 5- sentence 2- sentence 6- sentence 1- sentence 4.
The lactic acid that is building up in his muscles will eventually cause him to stop exercising. The burning sensation comes from the build up of that lactic acid in his muscles.