Which of the following external characters help in differentiating a male cockroach from a female one?
A
Abdominal segments
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B
Anal cerci
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C
Anal styles
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D
Antennae
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Solution
The correct option is D Anal styles Anal style are a pair of thread like appendages arising from the 9th segment of the male cockroaches. They are characteristic feature of male cockroaches and help in copulation.