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What has led scientists to believe that echinoderms are more closely related to humans and other vertebrates than to cnidarians?
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What has led scientists to believe that echinoderms are more closely related to humans and other vertebrates than to cnidarians?

User Jonas Granvik
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Research study show that sea urchins displayed similarity with humans like having an immune system and genetic material (DNA). Both belong to the deuterostomes. These animals are similar based on their early stage of development specifically during the embryos form.
User SysDragon
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