Porifera: 'holes' in body, Commonly called sponges, Filter feeders: Feed by filtering in from the surrounding water, Stay in one place, , Cnidarian: Stinging cells called nematocysts, Soft bodies and tentacles, Examples include jellyfish and medusa, , Worms: Cylindrical bodies, Annelids: segmented and round, Nematodes: non-segmented and round, Flatworms: segmented and flat, Echinoderms: Spiny skin, Examples: sea stars and sea urchins, , , Mollusc: Soft body, usually covered by a hard shell, Aquatic ones have gills, land ones have lungs, Examples: snail, octopus, , squid, Arthropods: Jointed limbs, Hard exoskeleton, Some can fly, Examples: insects, arachnids, crustaceans, arthropods,

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