A) kidney
B) nephridia
C) protonephridia
D) Malpighian tubules
Correct Answer: C
Solution :
Protonephridia are probably the earliest type of nephridia and are found in flatworms also. These consist of a network of fine tubles which run along the length of the animal at each side and open to the surface by minute nephridipores.You need to login to perform this action.
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