Length:
1:42
The five-part symmetry of echinoderms is demonstrated, as the five-armed starfish is morphed into an urchin that is then morphed into a sea cucumber.
Echinoderm Animation: Five-part symmetry
Next Generation Science Standards for this Video
The echinoderm body plan is a system based on five-part symmetry. All the tissues and organs are specialized for this unique way of life.
Starfish, urchins and cucumbers have adapted the echinoderm body plan for very different life styles.