Spiral cleavage is found in

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(C) Spiral cleavage is a type of cleavage where the blastomeres are arranged in a spiral pattern relative to the animal-vegetal axis of the embryo.Thi

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Nematoda,Annelida and Rotifera etc.

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(C) Spiral cleavage is a type of cleavage where the blastomeres are arranged in a spiral pattern relative to the animal-vegetal axis of the embryo.This type of cleavage is characteristic of the Lophotrochozoa group,which includes phyla such as Annelida,Mollusca,Platyhelminthes,and Rotifera.Among the given options,Annelida and Rotifera exhibit spiral cleavage,making option $C$ the most appropriate choice.

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