Echinoderms are marine animals that live in the ocean. Common echinoderms include the sea star, sea urchin, sand dollar and sea cucumber. Most echinoderms have arms or spines that radiate from the center of their body. The central body contains their organs, and their mouth for feeding. Sea stars, commonly known as the starfish, have 5 or more arms attached to their body. | |||
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Friday 24 February 2012
ECHINODERMS
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