The figure given below shows the male reproductive system of a cockroach. Identify $P$,$Q$,and $R$.

  • A
    Left phallomere,Ventral phallomere,Right phallomere
  • B
    Ventral phallomere,Right phallomere,Left phallomere
  • C
    Right phallomere,Ventral phallomere,Left phallomere
  • D
    Left phallomere,Right phallomere,Ventral phallomere

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The given figure shows the digestive system of a cockroach with a few structures marked as $A, B, C$ and $D$. Identify structures $A$ to $D$.

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Statement-$II$ :- In cockroach,the opening of the spiracles is regulated by the sphincters.

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