21mattlaur
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  • 01-06-2016
  • Chemistry
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echoderms contain a what similar to the kind that vertebrates have

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taskmasters
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  • 05-06-2016
Echinoderms contain internal skeletons similar to the kind that vertebrates have. This internal skeleton is made up of calcium carbonate. They are marine animals. Some species of the echinoderm phylum include starfish, sea cucumbers and sea urchins. 
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