What Characteristic Do Arthropods Possess That Echinoderms Do Not?
What Characteristic Do Arthropods Possess That Echinoderms Do Not? Answer:The primary difference between arthropods and echinoderms is their covering. Arthropods have a tough, non-living outer shell called exoskeleton, which protect their soft bodies while echinoderms have living endoskeletons, which develop within the deeper skin or body tissues and act as their protective covering. How do