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6. Echinoderms - Coggle Diagram
6. Echinoderms
Characteristics:
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Include starfish, sea urchins, sea cucumbers and sea lilies.
Stelleroidea 
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Echinoidea
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Ophiuroidea
Carnivorous predators, filter feeders or detritivores.
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Crinoidea
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Holothuroidea
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