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The wing of a bird, the wing of a bat and the wing of an insect all perform the function of flight but have different origins and structures. They are described as which kind of organ?
AHomologous organs
BVestigial organs
CSat-chromosomes
DAnalogous organs
Answer & Solution
Correct answer: D. Analogous organs
1. Analogous organs perform similar functions but differ in origin and development.
2. Bird, bat and insect wings all serve flight yet are built differently and arose separately.
3. Homologous organs share a common structure but differ in function, which is the reverse and rules out option A.
4. So these wings are analogous organs, option D.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 19 Origin and Evolution of Life "Evidences from Morphology and Anatomy", p.283_
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