Question

The chitinous exoskeleton is possessed by (1)Annelids 2 Arthropods (3)Molluscs (4)Echinoderms

Answer 1

Answer:

The chitinous exoskeleton is possessed by Arthropod.

Explanation:

Arthropods are covered with a tough, resilient integument or exoskeleton of chitin. Generally the exoskeleton will have thickened areas in which the chitin is reinforced or stiffened by materials such as minerals or hardened proteins. This happens in parts of the body where there is a need for rigidity or elasticity.