C) the changes reflect...
Um D? A fold?? If its right mark as brainleist please
Answer:
D
Explanation:
DNA use thymine and rna uses uracil but they use a,c,g together
"The red blood cell<span> survives on average only 120 days. </span>Red cells<span> contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the </span>body<span> and then returns carbon dioxide from the </span>body<span> to the lungs so it can be exhaled." - hematology.org</span>