Why is variation within a species useful?
Answer and explanation
Correct answer: It helps some organisms survive in changing environments
The governing concept is the role of variation in natural selection and survival. Environmental conditions may change because of climate, disease, food availability, or competition. Individuals with inherited features that suit the new conditions may survive and reproduce more successfully than others. Their useful traits can then become more common in the population. Therefore option A is correct; the other statements contradict the biological importance of variation.
Frequently asked questions
What is the correct answer to this question?
It helps some organisms survive in changing environments
Why is this the correct answer?
The governing concept is the role of variation in natural selection and survival. Environmental conditions may change because of climate, disease, food availability, or competition. Individuals with inherited features that suit the new conditions may survive and reproduce more successfully than others. Their useful traits can then become more common in the population. Therefore option A is correct; the other statements contradict the biological importance of variation.
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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