30. What are homologous organs ? What is the significance of homologous organs in the process of evolution ?
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Homologous organs are defined as the organs of different animals that are having a similar structure but differ in their functions. The structure of the two different animals resemble but the functions of their organs vary. The homologous organs are significant because they are necessary for drawing a phylogenetic and ancestral relationship between the living organisms. The structure may appear similar because they may have commonly originated from the ancestor.
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