Question

the boys in this picture look alike because their bodies contain identical carbohydrates. lipids. nucleic acids. proteins.

Explanation:

Nucleic acids (DNA) carry genetic information. Identical - looking individuals often have similar or identical genetic material. Carbohydrates are energy - providing molecules, lipids are for energy storage and membrane formation, and proteins have various functions like catalysis and structure but are not the primary reason for physical resemblance.

Answer:

nucleic acids