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Question
How do you differentiate homologous organs from analogous organs?
Solution
Sr. No. | Homologous organs | Analogous organs |
1. | The homologous organs have been inherited from common ancestors, with similar developmental pattern in embryos. | Analogous structures are shown in a batwing, a bird wing and an insect wing. |
2. | The forelimbs of a human hand, a front leg of a cat, the flipper of a whale and a bat’s, wing look dissimilar and adapted for different functions. | The analogous organs look similar but perform similar functions. |
3. | Their mode of development and the basic structure of bone are similar. | They have a different origin. Wings of insect are membranous extensions whereas wings of a bat is a bony structure. But performing the same function of flying. |
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