Earthworms have " setae", which are small hair-like bristles, though they are not composed of the same material as human hair. The setae help the earthworm to anchor itself while feeding or mating. It is also found in the wings/exoskeletons of insects. What biological matter forms these structures?

Earthworms have " setae", which are small hair-like bristles, though t

1.	Earthworms have " setae", which are small hair-like bristles, though they are not composed of the same material as human hair. The setae help the earthworm to anchor itself while feeding or mating. It is also found in the wings/exoskeletons of insects. What biological matter forms these structures?
Answer» CHITIN EXPLANATION:chitin - STRUCTURAL POLYSACCHARIDE

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Earthworms have " setae", which are small hair-like bristles, though they are not composed of the same material as human hair. The setae help the earthworm to anchor itself while feeding or mating. It is also found in the wings/exoskeletons of insects. What biological matter forms these structures?

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