Q. An important evidence in favour of organic evolution is the occurrence of :
- Homologous and vestigial organs
- Analogous and vestigial organs
- Homologous organs only
- Homologous and analogous organs
Solution :
Correct option : A An important evidence in favour of organic evolution is the occurrence of homologous and vestigial organs. Homologous organs are those organs which are similar in origin but perform different function. Examples include bat’s wing, cat’s paw, bird’s wing. All these have same origin but over the course of evolution perform different function. It favours the divergent evolution. Vestigial organs are those organs which are no longer functional but were functional in the past. It also favour the occurrence of organic evolution. Examples include wisdom teeth, appendix.