A polysaccharide that is composed of modified glucose subunits and that is found in the exoskeletons of insects and crustaceans is known as

Respuesta :

The polysaccharide is called CHITIN. 
Chitin are hard, tough substances that can be found at the exoskeletons of insects and crustaceans. Chitin is a derivative of glucose. Chitin is used majorly for protection in insects and crustaceans.