Question

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

Explanation:

Chitin is a polysaccharide (carbohydrate) that forms the exoskeleton of insects (arthropods). Nucleic acids are DNA/RNA (not from chitin), peanut butter is a food product (not related to chitin structure), skin of humans is made of keratin (not chitin), and beaks are made of keratin too. The exoskeleton of insects is made of chitin.

Answer:

the exoskeleton in insects