A) digestion
B) respiration
C) osmoregulation
D) excretion of nitrogenous wastes
Correct Answer: D
Solution :
In annelids, the nephridia are the exceretory organs. In earthworm, three types of nephridia are found?(i) septal, (ii) pharyngeal and (iii) integumentary. The septal nephridia do not discharge the excretory fluid to the exterior. Instead, these pour it into the intestine. Hence, these are also called enteronephric nephridia.
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