Star Fish belongs to

Coelenterata

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Echinodermata

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Arthropoda

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Molluscs

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Solution

The correct option is B Echinodermata
A) Coelenterates are not spiny skinned. Star fish is spiny skinned. Hence, it does not belong to Coelenterata.
B) Star fish belongs to Echinodermata as it spiny skinned and has a calcareous endoskeleton made of ossicles along with radial symmetry.
C) Arthropods have jointed appendages. Star fish do not have jointed appendages.
D) Most molluscs have shells and are asymmetrical. Star fish are radially symmetrical and do not have shells.
So, the answer is 'Echinodermata'.

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