.
Starfish
Roundworm
Elephant
Sponge
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Arthropoda
Porifera
Annelida
Cnideria
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Platyhelminthes
Amphibia
Mollusca
Arthropoda
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They are both filter feeders.
They are both molluscs.
They both have an exoskeleton.
They both have chromatophores.
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Nematoda
Porifera
Cnideria
Vertebrata
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