Question

how is the nacre useful for the oyster ​

Answer 1

Answer:

The amount of yellow pigments in the nacre of the shell varies in Akoya pearl oysters and it has been suggested that oysters without yellow nacre are useful as donors of mantle tissue for producing the valuable non-yellow pearls (Wada, 1969).

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Answer 2

Amount of yellow pigments in the nacre of your shell varies in Akoya pearl oysters and it has been suggested that oysters without yellow nacre are useful as donors of mantle tissue for producing the valuable non yellow pearls.