Answer:
amino group, fatty acid carboxyl group and R group.
Explanation:
The three parts from which amino acid is formed are the amino group, carboxyle group and R group. These amino acids are the building block of proteins. There are certain foods which contain proteins such as meat and pulses etc. When these foods are eaten, the protein broken down into amino acid with the help of enzymes and absorbed by the cells for building of muscles and other substances in our body.
<span>A dichotomous key is very easy to use because it provides only two choices. </span>
Any information provided has to be factual, not opinionated, to be reliable.
with this being said, the second choice would be the reason why her work is not reliable
Nerve cells is the correct answer :)