The other answer is wrong. It would be pollution. Hope this helps you!
Answer:
cellular respiration...that's breathing out of humans
and through human activities like burning of fossil fuels...
RNA has Uracil instead of Thymine. All the other three bases also occurs in RNA, adenine, guanine and cytosine. Therefore a ATA DNA codon will be transcript to UAU by RNA. Both Thymine and Uracil have the same role in however have minor chemical differences.
<em>I think the answer is C, Hence I would pick the answer to be B because it sounds to be more information into the answer then A/B. Hope this helps, let me know if I am right. </em>
An arrangement of genes consisting of an operator, a promoter, and a repressor is an OPERON.
