NEET 2012 Biology question

Which one of the following options gives one correct example each of convergent evolution and divergent evolution ?

(1)Convergent evolution: Thorns of Bougainvillia and tendrils of Cucurbita; Divergent evolution: Eyes of Octopus and mammals
(2)Convergent evolution: Eyes of octopus and mammals; Divergent evolution: Bones of forelimbs of vertebratesCorrect
(3)Convergent evolution: Thorns of Bougainvillia and tendrils of Cucurbita; Divergent evolution: Wings of butterflies and birds
(4)Convergent evolution: Bones of forelimbs of vertebrates; Divergent evolution: Wings of butterfly and birds

Answer: (2)

Solution

Convergent evolution: unrelated groups living in similar habitats evolve similar functional (analogous) structures, e.g. the eyes of the octopus and of mammals, or the wings of butterflies and birds. Divergent evolution: a common ancestral structure (homologous organs) is modified for different functions, e.g. the

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Question ID VK-091161