1.

Describe in brief types of nephridia found in earthworm based on their location?

Answer»

Nephridia are of three types : 

(i) Septal Nephridia : These are present on both the sides of intersegmental septa and open into intestine 

(ii) Integumental Nephridia : These are found attached to the lining of the body wall and open on the body surface. 

(iii) Pharyngeal Nephridia : These are found on the 4th, 5th, and 6th segment in the form of three paired tufts.



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