BIO 2135 Study Guide - Final Guide: Water Vascular System, Coelom, Symmetry In Biology
Document Summary
Although different types of larvae appear in different echinoderm classes, they"re all ciliated and their development follows the typical deuterostome pattern. After being pelagic (one of the zones in the marine environments where animals live. Pelagic animals are only found swimming or floating between the surface and bottom of the ocean and not at the shoreline) for a time, the larval stage settles to the bottom and completes its metamorphosis to the adult. Once caught, the food was moved to the mouth by a combination of tube feet and a ciliated groove that ran the length of the arm. Tube feet and the water vascular system (ambulacral system): Aquiferous system vs water vascular system (different: like all deuterostomes, echinoderms have a tripartite coelom. Part of the mesocoel has been used to form the unique water vascular system, which includes the tube feet that extend from the oral surface of an echinoderm.
