NEET Biology question

What external changes are visible after the last moult of a cockroach nymph?

(A)Both forewings and hindwings developCorrect
(B)Labium develops
(C)Mandibles become harder
(D)Anal cerci develop

Answer: (A)

Solution

Cockroach nymphs resemble wingless miniature adults and develop their wing buds gradually through successive moults; it is only after the final (last) nymphal moult that

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Question ID VK-111303