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13.3.7. Excretory System
Unit 13 - Mollusca
13.3.7. Excretory SystemThe two kidneys or nephridia are white triangular structures, extending forward from the branchial hearts, and opening by nephridiopores on either side of the intestine at the tips of small papillae.
Last modified: Thursday, 28 June 2012, 6:34 AM