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Q66 (CISF/2023) Science & Technology › Basic Science (Physics, Chemistry, Biology)

Which one of the following pairs correctly represents an example of analogous organs?

Explanation

Analogous organs are those that have different anatomical structures and embryonic origins but perform similar functions. They are the result of convergent evolution, where different species evolve similar traits independently to adapt to similar environmental challenges.

  • Wings of birds and insects: Bird wings have an internal bony skeleton covered by feathers, whereas insect wings are composed of chitinous membranes supported by veins. Despite these structural differences, both are used for flight, making them analogous.
  • Homologous organs: Options A, B, and D represent homologous organs. These share a similar basic anatomical structure (the pentadactyl limb pattern) inherited from a common vertebrate ancestor, even though they have been modified for different functions like running, grasping, or swimming (divergent evolution).
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SIMILAR QUESTIONS

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Inventions
Inventors

I. Flying shuttle loom
John Kay

II. Water frame
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III. Spinning jenny
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