ctenidium of pila means ...................
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A ctenidium is a respiratory organ or gill which is found in many mollusks. ... A ctenidium is shaped like a comb or a feather, with a central part from which many filaments or plate-like structures protrude, lined up in a row. It hangs into the mantle cavity and increases the area available for gas exchange.
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Respiratory organ or gills of mollusea.
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