How Is Echinoderms More Closely Related To Vertebrates Than Invertebrates?
How Is Echinoderms More Closely Related To Vertebrates Than Invertebrates? Insects, mollusks and echinoderms are all invertebrates. Among the invertebrate, the closest phylum are the echinoderms. Here are some reasons why echinoderms are the closest animal related to humans: During at larval stage, echinoderms have notochord which apparently disappears as they grow to a mature