Assertion: mollusk's organ | /r/Synonym | nephridia
Facets:
Source sentences:
text: Excretion of nitrogenous waste materials is accomplished by means of organs called nephridia or similar structures that function as kidneys.
text: The primary organs of excretion in gastropods are nephridia, which produce either ammonia or uric acid as a waste product.
text: Their excretory system consists of tube-shaped organs called nephridia (see Figure above).