in your own words, write the definition for Chitin. (include what organisms have chitin and what purpose it serves)

Chitin is a structural polysaccharide made up of modified glucose chains. Insect exoskeletons, fungus cell walls, and some hard structures in invertebrates and fish all include chitin. Chitin is an important biopolymer found in nature. Fungi, arthropods, and nematodes are the principal producers. In insects, it acts as a scaffold, supporting the epidermis and trachea cuticles, as well as the peritrophic matrices that line the gut epithelium. In insects, it acts as a scaffold, supporting the epidermis and trachea cuticles, as well as the peritrophic matrices that line the gut epithelium.

Explanation:

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they have sperm in my gf's mouth

explanation:

answer///africa and asia;