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Q.
Which of the following nephridia does not found in earthworm?
AFMCAFMC 2004
Solution:
Nephridia are excretory organs of earthworms. Three types of nephridia are found in earthworm according to their location, namely the septal nephridia, pharyngeal nephridia and integumentary nephridia.
Earthworm excretes urea as well as ammonia as an excretory waste. So, it is known as ureotelic as well as ammoniotelic.