CUET Preparation Today
Match List I with List II
Choose the correct answer from the options given below: |
A-III, B-I, C-IV, D-II A-II. B-IV, C-I, D-III A-IV, B-II. C-III. D-I A-I. B-III, C-II D-IV |
A-III, B-I, C-IV, D-II |
The correct answer is Option (1)- A-III, B-I, C-IV, D-II
Thorns on Bougainvillea and tendrils on Cucurbita exemplify homologous organs. They show divergent evolution. Both arise from axillary buds, indicating a common origin. However, they serve distinct functions; Bougainvillea thorns provide protection against grazing animals, while Cucurbita tendrils offer support for climbing. Sweet potato (root modification) and potato (stem modification) is an example of analogy.They are not anatomically similar structures though they perform similar functions. Hence, analogous structures are a result of convergent evolution. Hugo deVries brought forth the idea of mutations. He used evening primrose as a sample to study mutations. The process of evolution of different species in a given geographical area starting from a point and literally radiating to other areas of geography (habitats) is called adaptive radiation. Darwin’s finches represent one of the best examples of this phenomenon. |
