Explain the terms analogous and homologous organs with examples.

Homologous structures share a similar embryonic origin. Analogous organs have a similar function.

Homologous organs

Homologous organs are those organs that have the same basic structural design and origin but have different functions. Developed as a result of the adaptation to a different environment

  • For example, The forelimbs of frogs, a lizard, a bird and a man can have a basic design of bones, but they perform different functions.

Analogous organs

Analogous organs are those organs which have different basic structural design and origin but have similar functions. Developed as a result of the adaptation to a similar environment

  • For example, The wings of birds and insects.

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