Question

From the point of evolution, plant stem and leaf tendrils are examples of

• A. Homologous structure resulting from convergent evolution
• B. Analogous structure resulting from divergent evolution
• C. Homologous structure resulting from divergent evolution
• D. Analogous structure resulting from convergent evolution

Answer 1

The correct option is D Analogous structure resulting from convergent evolution

The key difference between stem tendril and leaf tendril is that stem tendril is a modified or specialized stem or terminal bud, while leaf tendril is a modified leaf, leaflet or a leaf part.

From the point of evolution in plants, tendrils derived from leaves and those derived from stems are examples of analogous structures because these have been derived from different parts of the plant, yet both perform the same function of anchorage and support. These structures evolve as a result of convergent evolution which occurs when similar evolutionary pressure results in the selection of similar adaptive features in different groups of organisms but performs the same function.