Technically, an animal can get carbon from any of these.
Carbon is present in all living things so if a shark ate a fish, they ate carbon. If a bear ate salmon, they ate carbon. If a cow ate grass, they ate carbon. As for the antelope, carbon dioxide has been found to be present in water as a dissolved gas.
If I were you I would probably go with the antelope though.
I believe the answer is 90%.
~Good luck!
Answer:
Once nitrogen is converted into compounds like ammonium and nitrate, these can be taken up from soils by plants and then the nitrogen can be used to form macromolecules like proteins and nucleic acids (DNA and RNA). ... It is an important part of many cells and processes such as amino acids, proteins and even our DNA.
Explanation:
Hope it helps...:)