asked 48.2k views
5 votes
The primary cause of a pearl forming is __________.

A. A larva that is not released after fertilization of the egg
B. Pollutants present in the water
C. The presences of a nacreous layer in oysters
D. An irritant that becomes embedded in the mantle

asked
User Prencher
by
8.9k points

1 Answer

4 votes
The answer is D. An irritant that because embedded in the mantle
answered
User Anoel
by
8.2k points
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