(i) What is the function of nephridia? (ii) How many types of nephridia are found in earthworm based on their location?
(i) Nephridia are segmentally organized excretory organs found in earthworms. (ii) On the premise in their location, 3 varieties of nephridia are located in earthworms. They are: (a) Septal nephridia: These are gift on each facets of the inter-segmental septa at the back of the 15 th section. They open into the intestines. (b) Integumentary nephridia: These lie connected to the frame wall from the 0.33 section to the final phase, which opens at the frame surface. (c) Pharyngeal nephridia: These are gift as 3 paired tufts in fourth, fifth, and 6th segments.
