In each segment of Periplaneta, sclerites are hardened plates of exoskeleton joined to each other by?
A
Cartilage
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B
Muscular tissue
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C
Tegmina
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D
Articular membrane
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Solution
The correct option is D Articular membrane In each segment of Periplaneta americana (coackroach), exoskeleton has hardened plates called sclerites (tergites dorsally and sternites ventrally ) that are joined to each other by a thin and flexible articullar membrane (arthodial membrane) .