Question

Give reasons of the following:

(ii) Forelimbs of a frog and a bird are called homologous organs.

Answer 1

Homologous organs:

1. They are organs that have similar structure but perform different functions in different animals.
2. Although the anatomical structure of the organ is similar but the function differs.

Examples of homologous organs:

Forelimbs of frog and bird are example of homologous organs. All the structures are similar but they perform different functions. Frogs use their forelimbs for jumping and propping, and birds use their forelimbs as wings for flying.