Marine Biology Paper Echinoderms Echinoderms are a phylum of marine organisms. They are generally characterized as invertebrates that have hard, internal calcium based skeletons, a water vascular syst
Marine Biology Paper Echinoderms Echinoderms are a phylum of marine organisms. They are generally characterized as invertebrates that have hard, internal calcium based skeletons, a water vascular syst
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Marine Biology Paper Echinoderms
Echinoderms are a phylum of marine organisms. They are generally characterized as invertebrates that have hard, internal calcium based skeletons, a water vascular system, and a five-rayed radial symmetry. Some examples of echinoderms are starfish, sand dollars, sea urchins, sea cucumbers, and brittle stars. The importance of echinoderms goes past the aesthetics that they bring to marine ecosystems. Echinoderms also have economic, ecologic, scientific, nutritional and medicinal purpose. They do so much not only for marine ecosystems, but also play a large role in the lives of humans.