Assertion :Cardiovascular system involves blood, blood vessels and heart. Reason: The human circulatory system is composed of heart, vessels and blood.

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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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Cardiovascular system involves blood, blood vessels and heart, in humans other mammals and birds. It is a closed form of circulatory system, wherein the heart acts as the pump to circulate blood through vessels that branch out to reach the cells. The supply of nutrients and oxygen occurs through closed vessels only.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion'

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