Most sea cucumbers have five strip-like ambulacral areas running along the body which is where the tube feet protrude and attract to pull the sea Cucumber along . The three on the lower surface have numerous tube feet, often with suckers. The two on the upper surface have tube feet that are vestigial and are no longer usefull to the animal.
Sea cucumbers have have about 20 tentacles . Echinoderms usually have an internal skeleton made up of plates of calcium carbonate. Most plates have become microscopic and embedded underneath the skin. A few species still have large plates which allows them to have a stronger armor exosteleton.
Sea cucumbers have have about 20 tentacles . Echinoderms usually have an internal skeleton made up of plates of calcium carbonate. Most plates have become microscopic and embedded underneath the skin. A few species still have large plates which allows them to have a stronger armor exosteleton.