Question
What is natural selection? How is artificial selection different from natural selection? Give one example each from plants and animals where artificial selection has operated.
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Answer
The nature builds some pressure on the population of a species and as a result few individuals are eliminated and few adapt to adjust with changes and become fit. This biological phenomenon is called natural selection.
Artificial selection have been operated in the followings cases:
Plants: Cabbage, wheat. Animals: High milk yielding varieties of cows.
| S. No | Natural selection | Artificial selection |
| (i) | It is a natural phenomenon. | It is the practice done by man. |
| (ii) | As a result only fit individual increases in a population. | As a result commercially high yielding and disease resistance varieties increase. |
Plants: Cabbage, wheat. Animals: High milk yielding varieties of cows.
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