Question

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

• A. If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
• B. If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
• C. If Assertion is correct but Reason is incorrect.
• D. If Assertion is incorrect but Reason is correct.

Answer 1

The correct option is B

If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.

Option B.

Assertion statement :

1. The cardiovascular system is often known as the blood-vascular system or simply the circulatory system.
2. It is made up of a muscle pumping device called the heart and a closed system of vessels called arteries, veins, and capillaries.

Reason statement :

1. The heart serves as a pump to circulate blood through capillaries that branch out to reach the cells in this closed circulatory system.
2. Only closed vessels are used to transport nutrients and oxygen.

Final answer: Both assertion and reason are correct, but reason is not the correct explanation of assertion.