Assertion: Valves are present in veins.
Reason: Valves prevent the backflow of blood in veins.

Both assertion and reason are correct and reason is the correct explanation for assertion.

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Both assertion and reason are correct but reason is not the correct explanation for assertion.

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Both assertion and reason are incorrect.

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Only assertion is correct.

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Solution

The correct option is A Both assertion and reason are correct and reason is the correct explanation for assertion.

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Similar questions

Veins have valves to prevent the backflow of blood because the blood in veins flow ________.

Valves are found in veins to check the backflow of blood flowing under

Valves are present to prevent backflow of blood in the heart.

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