Thorns of Bougainvillea and tendrils of Cucurbita are examples of

Analogous organs

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Homologous organs

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Vestigial organs

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Retrogressive evolution

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Solution

The correct option is B Homologous organs
Thorns of Bougainvillea and tendrils of Curcurbita are homologous organs, meaning that they are similar in origin, but functionally different. They both originate from the axillary position, but in Bougainvillea, they are modified into thorns for protection from burrowing animals and in Curcurbita into tendrils for climbing.

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The thorn of Bougainvillea and the tendril of Cucurbita are examples of

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