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प्रश्न
Assertion (A): Thorns of Bougainvillea and tendrils of Cucurbita are homologous organs.
Reason (R): Homologous organs have similar functions but are different in their structural details and origin.
विकल्प
Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.
Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.
Assertion (A) is true but reason (R) is false.
Both assertion (A) and reason (R) are false.
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उत्तर
Assertion (A) is true but reason (R) is false.
Explanation:
The thorn and tendril are homologous because they have the same origin as modified stems, though their functions differ. The reason describes analogous organs, which have similar functions but different origins and structural details.
