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प्रश्न
The selective agent that was responsible for causing the change in peppered moth was ______.
विकल्प
Lichens
Humans
Birds
Smoke
उत्तर
The selective agent that was responsible for causing the change in peppered moth was smoke.
Explanation:
Previously, light-winged moths outnumbered dark-winged moths due to their ability to avoid predators. However, with industrialisation, dark-winged moths were able to evade predators, while light-winged moths became prey. As a result, the smoke worked as a selective agent.
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