A) 3, 4 and 5
B) 4, 5 and 6
C) 5, 6 and 7
D) 6, 7 and 8
Correct Answer: B
Solution :
Pharyngeal nephridia of pheretima are situated in the segments, 4, 5 and 6. They opens in the anterior part of alimentary canal, i.e., buccal cavity and pharynx. They are without nephrostome.
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