Carbon has six protons. Which model shows a neutral atom of carbon?
A.

C. or B. i think

Explanation:

before it leaves the nucleus of a eukaryotic cell, mrna is altered in the following ways: - a cap is added to the 5' end of the mrna molecule; - a poly a tail is added to the 3' end; - introns are removed and exons are spliced together.

it would lead to upper respiratory infections and pneumonia.