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How many types of nephridia are present in the earthworm?(a) One(b) Two(c) Three(d) FourThe question was posed to me by my college professor while I was bunking the class.The origin of the question is Animals topic in division Structural Organisations in Animals of Biology – Class 11

Answer»

Correct answer is (c) Three

Explanation: The EXCRETORY organs of earthworm occurs as segmentally arranged coiled TUBULES CALLED nephridia. They are of three types –

i. SEPTAL nephridia

ii. Integumentary nephridia

iii. PHARYNGEAL nephridia.



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