This document describes characteristics of arthropods. Arthropods such as arachnids, crustaceans and insects share traits like having 6 limbs with joints, antennae, and an exoskeleton covering their body and limbs. The exoskeleton provides structure and protection but must be shed periodically to allow for growth.

2. arachnids crustaceansinsects

4. 6 limbs
(legs)
joints

5. antennae

6. exoskeleton

7. exoskeleton