Zoology-(general)
NEET Zoology (general) MCQ Question
Type: MCQ-numerical-Hard-Class 11
If an earthworm has a total of 150 segments, how many segments contain septal nephridia that open into the intestine?
A
136
B
135
C
137
D
138
Correct Answer
Option A
Detailed Explanation
According to the NCERT context, septal nephridia are present from segment 15 to the last. With 150 segments, segments containing septal nephridia are 150 - 15 + 1 = 136.
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