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Invertebrate classification Worksheet

Animals with no backbone are called invertebrates. Mollusks soft body with a shell Arthropods exoskelton and jointed legs Annelids (worms) long, segmented body Cnidaria live in water, have stinging cells Echinoderms live in water, radial symmetry, have spines or spiny skin Porifera spongy, live in water sea sponge jellyfish snail cricket