An example of 'convergent evolution' is:
Correct answer: B. Wings of birds and insects
- A. Forelimbs of humans and bats
- B. Wings of birds and insects
- C. Beaks of Darwin's finches
- D. All of the above options are correct
Explanation
The correct answer is the wings of birds and insects. This represents convergent evolution, where both groups independently developed wings to adapt to the ecological challenge of flight, despite their different ancestral lineages. The forelimbs of humans and bats are examples of homologous structures because they derive from a common ancestor. Darwin's finches illustrate adaptive radiation, as they evolved from a common ancestor to exploit various niches. Therefore, not all options can be correct as they pertain to different evolutionary processes.
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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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