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Question

Which of the following are examples of natural selection?

A
Industrial melanism
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B
Antibiotic resistance in bacteria
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C
Evolution of wolves to dogs
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D
Darwin’s finches
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Solution

The correct option is D Darwin’s finches
The example of the black and white peppered moths that got affected during the Industrial Revolution in England is a typical example of natural selection. It explains how the environment favoured certain traits over others.

Antibiotic resistance in bacteria is yet another example of natural selection. Here, the antibiotic acts by eliminating all the susceptible bacteria, leaving behind the antibiotic-resistant ones which can now survive and multiply.


The finches of the Galapagos Islands exhibit a variety of different beak types. All these birds originated from a common ancestor which had a specific beak type, which got modified as the birds migrated to different islands to adapt to their respective environments.

Evolution of wolves to dogs is considered to be an example of artificial selection by man rather than natural selection.

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