Which structure in the alimentary canal of an | vedclass

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(B) In the alimentary canal of an earthworm ($Pheretima$ $posthuma$), the $Gizzard$ is a specialized muscular organ.Its primary function is to grind t

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Gizzard

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(B) In the alimentary canal of an earthworm ($Pheretima$ $posthuma$), the $Gizzard$ is a specialized muscular organ.Its primary function is to grind the soil and decaying organic matter.To withstand the abrasive nature of the food particles, the inner lining of the $Gizzard$ is covered by a thick, protective layer known as the $cuticle$.

Which structure in the alimentary canal of an earthworm is lined by an internal cuticle?

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