When you worked on chapter 18 (Fig 18.4) you looked at eight different animal groups. Explain why you would classify yourself as a chordate (we hope) and not another group.
There are cnidarians, flatworms, mollucs, annelids, nematodes, arthropod.echinoderms,chordates.
Phylum chordata has subphylum called Vertebrata. Humans have... View the full answer