All of the following paired organs/structures have homology except:
Correct answer: B. Bat's wing: Wings of butterfly
- A. Human hand: Bat's wing
- B. Bat's wing: Wings of butterfly
- C. Horse front leg: Front flappers of Whale
- D. Forelimb of a cat: Forelimb of a whale.
Explanation
The wings of a bat and the wings of a butterfly are analogous structures, but not homologous. Analogous structures are structures that have similar functions but different evolutionary origins. Homologous structures are structures that have similar evolutionary origins but may have different functions. The wings of a bat and the wings of a butterfly are both used for flight, but they have evolved independently from each other. The wings of a bat are modified forelimbs, while the wings of a butterfly are modified outgrowths of the thorax.
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