The best advisor source would be the national security advisor . The answer to your question is A. I hope that this is the answer that you were looking for and it has helped you.
By the happen of nitrogen cycle
Answer: D). An amino acid
Explanation: All Amino acids have a carboxyl group (COOH), an amino acid group (NH2) and a side chain. The side chain is what distinguishes one amino acid from another. Some side chains are polar, hydrophobic, non polar and aromatic in nature. The carboxyl group is what classifies them as acids while the amino group (amine) is what gives them the name "amino".
I believe its D
Hope this helps!
(also Karen has a serious problem!)
No, that is certainly false. <span />
