All protostome phyla. The animals that cause the human disease schistosomiasis are referred to as flukes. Nematoda b. Ctenophora c. Echinodermata d. All protostome animals are segmented. All protostome animals are invertebrates.
All protostome animals are worm-like.
All protostome animals are coelomate. Both starfish and human adults have pentaradial symmetry. Starfish and humans share the deuterostome pattern of embryonic development, while insects are protostomes. Starfish and humans are both coelomate, while insects are not. All chordates are vertebrates.