MCQ
What external changes are visible after the last moult of a cockroach nymph?
  • A
    Development of anal cerci.
  • Development of both forewings and hind wings.
  • C
    Development labium.
  • D
    Mandibles become harder.

Answer

Correct option: B.
Development of both forewings and hind wings.
b
The development of cockroach is paurometabolous meaning that their development is through nymphal stage. The nymphs look very much like adults. The nymph grows by moulting about $13$ times to reach adult form. The last nymphal stage has wingpads while adult cockroaches have wings.

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