Differences Between Homologous and Analogous Organs

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Detailed Solution

Feature	Homologous Organs	Analogous Organs
Definition	Organs having same structural origin but different functions	Organs having different structural origin but same function
Type of Evolution	Indicate divergent evolution	Indicate convergent evolution
Embryonic Origin	Develop from similar embryonic tissues	Develop from different embryonic tissues
Example	Forelimbs of human, bat, and whale	Wings of bird and insect
Structural Similarity	Internally similar, may differ externally	Externally similar, internally different
Function Similarity	Functions differ (grasping, flying, swimming)	Functions are similar (flight)

Homologous organs prove that different species evolved from a common ancestor, while analogous organs show how unrelated species can evolve similar features due to similar environmental pressures.

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