Arthropods are a group of organisms which possess an exoskeleton, <span>jointed appendages, and segmented bodies. This group mostly includes insects, arachnids, and crustaceans. Therefore, the answer to the question above would be option C: jointed appendages. Hope this helps.</span>
Arthropods evolved due to the fact that their bodies started to compress and form three body segments, jointed appendages, and an external skeleton. This is thought to be the main cause of their wide diversity and success through time. Jointed appendages means that their "arms" and "legs" and antennae are segmented and articulated.
