A-Thorn of Bougainvillea; B-Tendril of Cucurbita. Select the correct statement about A and B.

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Structure and origin are different, but the function is the same.

Structure, origin and function are the same.

Structure and origin are the same, but the functions are different.

The structure is the same but the origin and function are different.

answer is A.

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Detailed Solution

In the case of the tendrils of Cucurbita and the thorns of Bougainvillea, both structures are modified from branches and arise from axial positions, demonstrating their homology. Despite serving different functions (climbing in Cucurbita and protection in Bougainvillea), their shared origin indicates their homologous nature.

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