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ECHINODERMS
· Echinoderms have radial symmetry. They have five or more lines which radiate from a central point where their mouths are.
· They are invertebrates with hard plates under their skin. Some like sea urchins have spines on the outside of their bodies .
· They live at the bottom of the sea and crawl slowly on hundreds of tube feet
Alvaro ¿que es esto:· ?
Alvaro ¿que es esto:· ?
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