Question
Molluscan kidney
Answer :
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The molluscan kidney, commonly called the metanephridium or organ of Bojanus, is the chief excretory and osmoregulatory organ in molluscs. It functions primarily in the removal of nitrogenous wastes and in maintaining ionic and water balance of the body. Typically, a pair of kidneys is present, though in some groups one may be reduced or fused. Each kidney is a sac-like, glandular structure located in close association with the pericardial cavity and the heart, reflecting the intimate link between circulation and excretion. Physiologically, the molluscan kidney operates through ultrafiltration and selective reabsorption.
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