The wing of an insect and the wing of a bird are said to be analogous because they
Correct answer: C. perform the same function but differ in structure and origin
- A. develop from the same embryonic tissue
- B. contain the same bones in the same order
- C. perform the same function but differ in structure and origin
- D. are both reduced and non functional
Explanation
Both are used for flight, but a bird wing is a modified vertebrate forelimb with bone inside while an insect wing is an outgrowth of the body wall with no bone at all, so the resemblance is functional only. This is convergent evolution, in which unrelated groups meeting the same environmental demand arrive at similar solutions. Analogy therefore tells us about the environment, whereas homology tells us about ancestry.
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About Concept of Evolution
Evolution is the heritable change in populations over generations, driven by mutation, recombination, natural selection, genetic drift and reproductive isolation. Questions examine variation, adaptation, survival and reproduction, speciation, fossil and anatomical evidence, and the difference between individual acclimatization and evolutionary change in a population.
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