Answer the following: (i) What is the function of nephridia ? (ii) How many types of nephridia are found in earthworm based on their location ?
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Solution
(i) Nephridia are the organs for excretion and osmoregulation in animals, e.g., earthworm. (ii)Based on their location, nephridia in earthworm are of three types namely, pharyngeal nephridia, septal nephridia and integumentary nephridia.