Answer: All arthropods have an exoskeleton.
Explanation:
In word 'arthropod', 'arthro' means jointed and 'pods' means appendages. They are defined as those animal with segmented body and jointed appendages.
Arthropods are invertebrate animals with exoskeleton that is external skeleton.This exoskeleton is made up chiton a type of protein which provide support to muscle attachment and protection of the body of the animal. For example : insects , spiders, centipedes etc.
