Echinodermata is a group of animals which are

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(B) The phylum $Echinodermata$ is characterized by the presence of an endoskeleton of calcareous ossicles,which gives them a spiny appearance (the nam

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Coelomate,spiny,marine

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(B) The phylum $Echinodermata$ is characterized by the presence of an endoskeleton of calcareous ossicles,which gives them a spiny appearance (the name $Echinodermata$ means 'spiny-skinned').All echinoderms are exclusively marine animals.They possess a true coelom,meaning they are coelomate organisms.Therefore,they are coelomate,spiny-skinned,and marine animals.

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