The chemical process by which complex molecules of protein are made from simple molecules is called Respiration
Answer:
A?
I think I'm wrong! please tell me what one it is if I'm wrong.
Structurally, DNA and RNA are nearly identical. As mentioned earlier, however, there are three fundamental differences that account for the very different functions of the two molecules. RNA has a ribose sugar instead of a deoxyribose sugar like DNA. RNA nucleotides have a uracil base instead of thymine.
D because they are complete systems
