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  4. Starfish belongs to phylum :

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Q. Starfish belongs to phylum :

Delhi UMET/DPMTDelhi UMET/DPMT 2005

Solution:

Starfish is a member of phylum Echinodermata, which is characterised by pentagonal star-like body, hollowarms (containing gonads) and presence of tube feet, arranged in $2-4$ rows in open amhulacral grooves. Porifera : Leucosolenia, Euspongia, Spongilla. Coelenterata : Hydra, Physalia, Obelia. Arthropoda: Scorpion, Limulus, Palaemon, Daphnia.