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Which feature of an amino acid makes it essential?
A
It contains an R-group and an amine group.
B
It is necessary for life but not produced by the body
It has a primary and a secondary structure.
It is synthesized in the body.

Respuesta :

Answer:

it is necessary for life but not produced by the body

Explanation:

the essentials are not synthesized in the body. They are the amino acids you must acquire via food (protein) ingestion.