A) pharyngeal region
B) clitellar region
C) anal region
D) none of the above
Correct Answer: B
Solution :
14th 15th and 16th segments contains 2000-2500 nephridia (ie, 10-12 times more nephridia than other segment). So, known as ?forest of nephridia?. Nephridia are organs of excretion in eathworm. Clitellar region is present in 14th 15th and 16th segment, so forest of nephridia are present in clitellar region.
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