| 21. | Echinoderm larvae, like chordates, are bilaterally symmetric.
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| 22. | His name is that of the genus of echinoderms to which starfish belong.
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| 23. | The waters near Sebuku have fewer echinoderms than further into the Lampung Bay.
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| 24. | In his zoological research he mainly dealt with coelenterata, echinoderms and arthropods.
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| 25. | See this diagram of early echinoderms and relatives from this article on their evolution
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| 26. | The echinoderms are important both ecologically and geologically.
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| 27. | Like other echinoderms, crinoids have pentaradial symmetry.
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| 28. | Some echinoderms locomote using the many tube feet on the underside of their arms.
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| 29. | The echinoderms are important both biologically and geologically.
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| 30. | The group Ascothoracida contains about 100 species, all parasites of coelenterates and echinoderms.
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