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Assertion :Exoskeleton in cockroach is a jointed structure which helps in the movement of the body. Reason: Exoskeleton of cockroach has hardened plates called sclerites that are joined to each other by a thin and flexible articular membrane.
Assertion :Exoskeleton in cockroach is a jointed structure which helps in the movement of the body. Reason: Exoskeleton of cockroach has hardened plates called sclerites that are joined to each other by a thin and flexible articular membrane.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In cockroach the body is covered/ supported by a chitinous exoskeleton, it is secreted by underlying cells of the hypodermis. This exoskeleton is divided into smaller segments called sclerites, they are connected by a soft and flexible layer called arthrodial membrane it lacks exocuticle so it allows flexible movements of the body.Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
In cockroach the body is covered/ supported by a chitinous exoskeleton, it is secreted by underlying cells of the hypodermis. This exoskeleton is divided into smaller segments called sclerites, they are connected by a soft and flexible layer called arthrodial membrane it lacks exocuticle so it allows flexible movements of the body.
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
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