Which secretion is responsible for the characteristic pungent odor in cockroaches?

  • A
    Pheromones
  • B
    Flame cells
  • C
    Abdominal glands
  • D
    Cervical cells

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$A$. Phallic gland    $B$. Urecose gland    $C$. Nephrocytes    $D$. Fat body     $E$. Collaterial glands

Choose the correct answer from the options given below :

What is the position of the testis in Periplaneta americana?

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