Which part of an amino acids basic structure gives it its unique functional characteristics

B

Explanation:

This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH. Amino acid structureAmino acids have a central asymmetric carbon to which an amino group, a carboxyl group, a hydrogen atom, and a side chain (R group) are attached.

Chemicals of this type: Alanine

Explanation:

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

examples of nucleic acids are deoxyribonucleic acid (dna) and ribonucleic acid (rna).