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Question

Assertion: Walls of the ventricles are generally thicker than that of the atria.
Reason: Ventricles pump blood to different organs with high pressure.

A
Both A and R are true and R is the correct explanation of A.
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B
Both A and R are true but R is not a correct explanation of A
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C
A is true but R is false
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D
A and R are false
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Solution

The correct option is A Both A and R are true and R is the correct explanation of A.
Ventricles have thicker walls than atria because they have to pump blood to different organs with high pressure while atria just receive blood from other parts of the body.

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