Are Amino acid
A. Nucleic acid
B. Protein
C. Lipid
D. Carbohydrate

B. Protein

Amino acids are organic compounds that combine to form proteins. Amino acids and proteins are the building blocks of life. When proteins are digested or broken down, amino acids are left. The human body uses amino acids to make proteins to help the body: Break down food.

i think the answer is g1

hope i

-lavira: )

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.