Different structures evolving for the same function and hence having similarity is a result of habitat-driven selection of similar adaptive features in different groups of organisms. Identify the evolutionary phenomenon described above and select the correct pair of structures that exemplify it.

Step-by-step solution

The phenomenon described is convergent evolution, where anatomically different structures evolve to perform the same function due to similar environmental pressures, resulting in analogous organs. Flippers of penguins (birds) and dolphins (mammals) are anatomically different but perform the similar function of swimming, thus representing analogous organs and convergent evolution. Forelimbs of whales and bats, as well as thorns and tendrils of Bougainvillea and Cucurbita, share a common anatomical plan but perform d