Spiral Cleavage is found in

Coelenterata

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Annelids

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Echinodermata

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Cephalopod Molluscs

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Solution

The correct option is A Annelids
Spiral cleavage is the type of cleavage in which the blastomeres are arranged such that the upper tier lie over the cell junctions of the second tier in a way that they spiral around the embryo axis. It is commonly found in protostomes, including annelids
So, the correct answer is 'Annelids'

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