Answer:
D) Adenine, Guanine, Cytosine, and Uracil
Explanation:
RNA shares three of the nitrogenous bases of DNA: Adenine, Guanine, and Cytosine. However, instead of thymine, it has Uracil!
I would go with c because its tells you right in there that the ecosystem help who lives around that area.
It can be inferred that muscle cells in athletes produce more ATP than muscle cells of those who live sedentary lifestyles.