Question

what is the image showing? nucleic acid polypeptide nucleotide monosaccharide

Explanation:

The image shows a chemical structure with peptide bonds ($\ce{-CO - NH -}$), which are characteristic of polypeptides. Nucleic acids have nucleotide units (sugar - phosphate - nitrogenous base), nucleotides are single units of nucleic acids, and monosaccharides are simple sugars (e.g., glucose).

Answer:

Polypeptide