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they are characterized as marine animals with spiny and they have water vascular system tube feet and radial symmetry as adult which group of invertebrates is being described​

Sagot :

Answer:

echinoderm

Explanation:

An echinoderm is a member of the phylum Echinodermata which contains a number of marine organisms recognized by their pentamerous radial symmetry, calcareous endoskeleton, and a water vascular system which helps operate their small podia.

The answer is An Echinoderm

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