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Thorns of Bougainvillea and the tendrils of Cucurbita are ______ structures. - Biology (Theory)

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Question

Thorns of Bougainvillea and the tendrils of Cucurbita are ______ structures.

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Solution

Thorns of Bougainvillea and the tendrils of Cucurbita are homologous structures.

Explanation:

They are considered homologous because both arise in axillary positions and represent modifications of the branch, despite having different functions. This shows that they share a common embryogenic origin and structural basis, indicating a common ancestry.

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Chapter 8: Evidences and Theories of Biological Evolution - TEST YOUR PROGRESS [Page 345]

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Nootan Biology [English] Class 12 ISC
Chapter 8 Evidences and Theories of Biological Evolution
TEST YOUR PROGRESS | Q 2. 4. | Page 345
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