Thorns of Bougainvillea and tendrils of Cucurbita have

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similar origin and perform the same function

similar origin and perform different functions

dissimilar origin but perform the same functions

dissimilar origin and perform different functions

answer is B.

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Detailed Solution

Thorns of Bougainvillea and tendrils of Cucurbita are stem modifications arising from axillary body (similar origin). Thorns of Bougainvillea help in protection while tendrils of Cucurbita help in twisting around other objects around it to help anchor its vine (different functions). Such structures are referred to as homologous organs.

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