Assertion : Smaller the organism, higher is the rate of metabolism per gram weight.

Reason : The heart rate of six months old baby is much higher than that of an old person.

If both assertion and reason are true and reason is correct explanation of assertion.

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If both assertion and reason are true but reason is not the correct explanation of assertion.

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If assertion is true but reason is false.

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If both assertion and reason and false.

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Solution

The correct option is B If both assertion and reason are true but reason is not the correct explanation of assertion.
In smaller organisms, the rate of metabolism per gram weight is more, because the utility of the materials is more. They require more efficient delivery of oxygen to cells.

The heart rate of a six month old body is much higher that of the old person because of high metabolic rate.

Therefore, both assertion and reason are true but reason is not the correct explanation of assertion.

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Similar questions

\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

Read the assertion and reason carefully to mark the correct option out of the options given below :

(a) If both assertion and reason are true and the reason is the correct explanation of the assertion.

(b) If both assertion and reason are true but reason is not the correct explanation of the assertion.

(d) If the assertion and reason both are false.

(e) If assertion is false but reason is true.

Assertion: Acetic acid does not undergo haloform reaction.

Reason: Acetic acid has no alpha hydrogens.

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