Zoology - Evolution Question with Solution | TestHub
Which of the following is set of homologous organs showing divergent evolution?
Options:
Answer:
Solution:
Homologous organs: The organs with a similar origin, structure and different functions.
Example I: Pattern of bones of forelimbs in whales, bats, cheetah and human (all mammals) share similarities in anatomical structure (all have a humerus, radius, ulna, carpals, metacarpals and phalanges in their forelimbs) but perform different functions.
Example II: Vertebrate hearts.
Example III: Vertebrate brains.
Example IV: Thorns of bougainvillea and tendrils of cucurbita, where both originate from axillary buds but thorns are protective and tendrils are supportive in function.
Analogous organs: The organs with a dissimilar origin, structure but performs the same functions.
Example I: Wings of butterfly and birds.
Example II: Eyes of the octopus and mammals.
Example III: Flippers of penguins and dolphins.
Example IV: Sweet potato (root modification) and potato (stem modification).
