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Name: Amy Li
Status: student
Age:  30s
Location: N/A
Country: N/A
Date: 5/22/2003


Question:
In order for an oyster to make a pearl, a piece of sand or rock must get inside its shell. This causes the mantle to secrete a shiny smooth coating on it. Of what advantage might this process be to the oyster?


Replies:
It walls off the offending irritant...our bodies do much the same with irritating bodies with which we cannot rid ourselves of.

Peter F.


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