Question

Give examples of Homologous and Analogous organs.

Answer 1

Homologous organs :

1. Similar structure , different function
2. Developmental origin is same
3. Divergent evolution

Example :

• Flipper - whale
• Wing - bat
• Fore limb -horse
• Paw - cat
• Hand - human
• Thorn - bougainvillaea
• Tendril - cucurbita

Analogous organ :

1. Same function , different structure
2. Convergent evolution
3. Not anatomically similar

Example :

• Wings of a butterfly and wings of a bird.
• Flippers of penguin and dolphin
• Eye of an octopus and a mammal ( both differ in retinal position but function is same )
• Sweet potato( root modification) and potato ( stem modification) - both help in storage of food.