invertebrate acoelomates

Is Earthworms Deuterostome Or Protostome? Animals in the Phylum Annelida include the earthworms, leeches, and many marine worms. These protostome coelomates exhibit true segmentation. Are worms protostomes or deuterostomes? The deuterostomes also include some less familiar animals such as sea urchins and starfish. The protostomes include several invertebrate groups such as insects, spiders, lobsters and