In What Different Ways Echinoderms Are Specialized? Echinoderms possess a unique ambulacral or water vascular system, consisting of a central ring canal and radial canals that extend along each arm. Water circulates through these structures and facilitates gaseous exchange as well as nutrition, predation, and locomotion. What is special about echinoderms? Echinoderms possess a unique
What Is The One Thing That All Echinoderms Have In Common? All echinoderms have one thing in common: radial symmetry. This means that the creatures have appendages (or body construction) which point outward from the center of the body like the spokes on a bicycle wheel. Furthermore, these appendages usually occur in multiples of five,
Do Most Echinoderms Have Radial Symmetry? Do most echinoderms have radial symmetry? Adult echinoderms have radial symmetry. This is easy to see in the sea star and sand dollar in Figure above. However, echinoderms evolved from an ancestor wit h bilater al symmetry. Do all echinoderms have radial symmetry? All echinoderms also exhibit radial symmetry