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