This document provides a comparison of key features among 9 phyla: Porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, and Echinodermata. It outlines characteristics such as habitat, level of organization, body symmetry, coelom, segmentation, and digestive system. The phyla range from simple cellular organisms like sponges to more complex organisms with organ systems and true tissues like arthropods and mollusks.