The wings of birds and the forelegs of a horse are _ structures.
Correct answer: B. Homologous
- A. Analogous
- B. Homologous
- C. Vestigial
- D. Evolutionary convergent
Explanation
A great example of homologous structures is the wings of a bird and the forelegs of a horse. Birds and horses are both animals, so they share a common ancestry. Both a bird's wing and a horse's foreleg share a similar internal bone structure, even though they look very different externally.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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