In Periplaneta, ductus ejaculatorius of male reproductive system lies in
A
7th segment
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B
8th segment
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C
5th segment
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D
6th segment
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Solution
The correct option is B 7th segment The ejaculatory duct is a muscular tube that extends posteriorly and opens at the gonopore or the male genital pore. Both the vas deferentia run backward and open into the ductus ejaculatorius in the seventh segment.