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Invertebrates. 90% of all animals are invertebrates.

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Mollusks. Mollusks have shells. Mollusks include snails, mussels, and octopuses.

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Jellyfish. Jellyfish have tentacles.

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Sponge. Sponges live on the seabed.

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Echnoderm. Echnoderms are predators and can have sharp spines.

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Starfish are echnoderms.

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Anelids. Anelids have bodies with segments.

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Earthworms are anelids.