Question

All the following statements are correct about homologous organs, except

• A. homologous organs share common origin.
• B. homologous organs perform same functions.
• C. homologous organs show divergent evolution.
• D. members having homologous organs share common ancestors.

Answer 1

Answer: (B)

Homologous organs: These are the organs that share a common origin (or ancestors) but have different functions. Such organs show divergent evolution.
Example 1: Pattern of bones of forelimbs in whales, bats, cheetah and humans
Example 2: Vertebrate hearts
Example 3: Vertebrate brains
Example 4: Thorns of Bougainvillea and tendrils of Cucurbita