amieethao3122 amieethao3122
  • 13-04-2018
  • Biology
contestada

A marine animal with tube feet and radial symmetry is certainly an echinoderm.
a. True
b. False

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pbzepplin
pbzepplin pbzepplin
  • 23-04-2018
This is true.  Adult echinoderms all show radial symmetry. Other characteristics are a water-based vascular system, external tube feet and a calcareous endoskeleton.  Echinoderms include sea stars, sea urchins, sand dollars, sea cucumbers and sea lilies.
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