Organs of different organisms can be classified on the basis of their structure and functions . They are classified as :
| Analogous Organs | Homologous Organs |
|---|---|
|
|
| Analogous organs have same physical structures and anatomy . | Homologous organs have different physical structures and anatomy . |
| However their functions are dissimilar. | They have similar functions . |
| For eg : Forelimbs of humans , cats , whales and bats are similar but they have different functions . | For eg: Wings of insects , birds and bats are different in structures but they have similar function of flying. |