Question

what other structure does chitin make? (remember this is still a carbohydrate)
nucleic acids
peanut butter
the exoskeleton in insects
skin in humans

Explanation:

Chitin is a polysaccharide that forms the exoskeleton in insects. Nucleic acids are macromolecules for genetic - info storage, peanut butter is a food product, and human skin is mainly made of proteins like collagen.

Answer:

the exoskeleton in insects