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One of the most interesting concepts in animal evolution is the relationship between the phylum Echinoderms and the phylum Chordates. Humans belong to the phylum Chordata. The phylum most closely related to our phylum is the Echinoderms.Why? What features are shared among these two? What features are different?

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Keith Leannon
Keith LeannonLv2
28 Sep 2019
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