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Explain with an example for each, how the following provides evidences in favour of evolution in organisms:- (a) Homologous organs (b) Analogous organs (c) Fossils - Science

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Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :

Homologous organs

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Solution

Homologous organs:- Organs which have the same basic structure but different functions are called homologous organs.

Example:- The forelimbs of a man, lizard, frog, bird, and bat have the same basic design of bones, but they perform different functions. The forelimbs of a man are used for grasping, the forelimbs of a lizard are used for running, the forelimbs of a frog are used to prop up the front ends of the body when at rest and the forelimbs of a bird and bat are modified for flying. Hence, all these organisms use their forelimbs for performing different functions, but the forelimbs have originated from the same structural pattern.

Concept: Evidence of Organic Evolution
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