Pearls are produced by animals belonging to t | vedclass

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(C) Pearls are produced by certain members of the phylum $Mollusca$,specifically within the class $Bivalvia$ (e.g.,pearl oysters like $Pinctada$).When

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Mollusca

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(C) Pearls are produced by certain members of the phylum $Mollusca$,specifically within the class $Bivalvia$ (e.g.,pearl oysters like $Pinctada$).When a foreign particle,such as a grain of sand or a parasite,enters the mantle cavity of the oyster,the mantle tissue secretes layers of calcium carbonate $(CaCO_3)$ around the irritant to protect itself.Over time,these layers form a pearl.

Pearls are produced by animals belonging to the phylum:

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