Which one among the following is an example for homology?
Eye of octopus and mammals
Tuber of sweet potato and potato
Wings of butterfly and birds
Flippers of penguins and dolphins
Thorn of bougainvillea and tendril in cucurbita
The correct option is E Thorn of bougainvillea and tendril in cucurbita
The thorn of bougainvillea and tendril in cucurbita are homologous organs. Both arise from axillary bud. They perform different functions. Thorn provides protection and tendril provides support fr climbing. They have anatomical similarity but they differ functionally hence, they are called as homologous organs.
Eye of octopus and mammals, tuber of sweet potato and potato, wings of butterfly and birds and flippers of penguins and dolphins are examples of analogous organs, as, they have similar functions. Thus, other options are wrong.