In which situation will the effect of natural selection be most clearly seen?
Answer and explanation
Correct answer: A colour that helps organisms hide from predators increases over generations
Natural selection acts on heritable variation when some individuals survive and reproduce more successfully than others. A colour that provides camouflage helps an organism escape predators, so its carriers may leave more offspring. If the colour is inherited, its frequency can increase over generations. Therefore option A directly shows selection, whereas identical organisms, no reproduction, or no environmental pressure provide no effective basis for selection.
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What is the correct answer to this question?
A colour that helps organisms hide from predators increases over generations
Why is this the correct answer?
Natural selection acts on heritable variation when some individuals survive and reproduce more successfully than others. A colour that provides camouflage helps an organism escape predators, so its carriers may leave more offspring. If the colour is inherited, its frequency can increase over generations. Therefore option A directly shows selection, whereas identical organisms, no reproduction, or no environmental pressure provide no effective basis for selection.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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