Which of the following is not an example of convergent evolution ?
- Fore limbs of whales and bats
- Flippers of penguins and dolphins
- Eyes of octopuses and mammals
- Wings of butterflies and birds
Answer
(1) Fore limbs of whales and bats
Solution
Convergent evolution: different structures evolve for the same function and hence look similar ⇒ analogous organs.
As per NCERT, examples of analogy: wings of butterflies and birds, eyes of octopus and mammals, flippers of penguins and dolphins.
Forelimbs of whales and bats (with humans, cheetahs) have the same basic structure but perform different functions ⇒ homologous organs ⇒ divergent evolution.
∴ Fore limbs of whales and bats are not an example of convergent evolution.
Answer: (1)