Key Difference – Hemichordata vs Chordata Kingdom Animalia is composed of multicellular, heterotrophic, eukaryotic animals. There are different phyla coming under Kingdom Animalia. Chordata and Hemichordata are two phyla of animals. Phylum Hemichordata includes marine worm-like animals that are invertebrates. Phylum Chordata includes animals that possess a notochord, a dorsal hollow nerve cord and […]