Explain with an example for each, how the following provides evidences in favour of evolution in organisms

Explain with an example for each, how the following provides evidences in favour of evolution in organisms :

1. Homologous organs
2. Analogous organs
3. Fossils

Answer

Homologous organs - study of homologous organs suggests that the organs having same structure but performing different functions have evolved from a common ancestor.

Ex. - forelimbs of a frog, lizard, bird and man.

Analogous organs - show adoption of organs for common use.

Ex. - wings of butterfly and wings of bat.

Fossils – provide the missing links between two species.

Ex. - Archeopteryx / fossils of some dinosaurs with feathers.