"phenylalanine is an amino acid needed by the body and must be ingested through the diet. therefore, this is an example of a(n) _____________ amino acid." - QAmmunity.org

"phenylalanine is an amino acid needed by the body and must be ingested through the diet. therefore, this is an example of a(n) _____________ amino acid."

asked May 21, 2018 168k views

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