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Explain the terms analogous and homologous organs with examples.



1. Analogous Organs 

Their origin and structure are different but function is the same . So they are examples of Convergent Evolution .


  • The structure of bat wings is skin stretched over elongated fingers.
  • In birds , the arms (wing) is covered in feathers .
  • These are called Analogous Characteristics .


2. Homologous Organs 

Their origin and structure is similar but their function is different.

This means they evolved differently from a common ancestor . This is known as Divergent Evolution



  • The basic structure of the limbs of frogs, lizards, birds and humans is the same .
  • But, their functions are different .
  • Hence they are Homologous characteristics.

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo