Why is variation called the raw material of evolution?
Answer and explanation
Correct answer: Because natural selection can increase useful forms among variations
Variation means differences in traits among individuals of the same population. Some variations may help an organism survive or reproduce more successfully in a particular environment. Natural selection preserves and increases such advantageous heritable variations over generations, while less useful forms may decline. Thus, variation supplies the different forms on which evolution can act; heredity then helps transmit selected traits to descendants.
Frequently asked questions
What is the correct answer to this question?
Because natural selection can increase useful forms among variations
Why is this the correct answer?
Variation means differences in traits among individuals of the same population. Some variations may help an organism survive or reproduce more successfully in a particular environment. Natural selection preserves and increases such advantageous heritable variations over generations, while less useful forms may decline. Thus, variation supplies the different forms on which evolution can act; heredity then helps transmit selected traits to descendants.
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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