Assertion: The same plant can have different shapes of leaves. Reason: Plants follow different pathways in response to the environment or phases of life to form different kinds of structures.
Select the correct option from below:
A
If both assertion and reason are true and the reason is the correct explanation of the assertion
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B
If both assertion and reason are true but the reason is not the correct explanation of the assertion
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C
The assertion is true but the reason is false
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D
Both assertion and reason are false
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Solution
The correct option is A If both assertion and reason are true and the reason is the correct explanation of the assertion Heterophylly is a phenomenon in which plants can have different leaf shapes in various environmental conditions or phases of life. For example - in larkspur, juvenile phase leaves bear a different shape than that of the mature phase. Hence, the assertion is correct.
The ability of plants to follow different pathways to observe different pathways as a response to different environmental conditions or phases of life to develop various kinds of structures is called plasticity. Plasticity helps the plant to survive. Heterophylly is a case of plasticity. Hence, the reason is true and it correctly explains the assertion.