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Lungs

Nacre or moth...

Question

Nacre or mother of pearl is secreted by mantle's

A

Cubical epithelial cells

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B

Columnar epithelial cells

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C

Columnar endothelial cells

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D

Cubical endothelial cells

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Solution

The correct option is D Columnar epithelial cells
Mother of pearl is Nacre. It is an organic-inorganic composite material produced by certain molluscs as an inner shell layer. It is secreted by mantle's columnar epithelial cells. It forms the outer coating of pearls. Structurally, it is strong, resilient and lustrous.
Thus, the correct answer is option B.

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