Do All Echinoderms Have Tube Feet?
Do All Echinoderms Have Tube Feet? Do all echinoderms have tube feet? All echinoderms have a water-vascular system, a set of water-filled canals branching from a ring canal that encircles the gut. The canals lead to podia, or tube feet, which are sucker-like appendages that the echinoderm can use to move, grip the substrate, or