Why can isolation be important in speciation?
Answer and explanation
Correct answer: Different changes can accumulate in separated groups
The governing concept is reproductive isolation in evolution. When a population becomes separated, its groups may stop interbreeding regularly. Mutations, inherited variations, natural selection, and environmental pressures can then act differently in each group. Over many generations, the accumulated differences may become so large that the groups can no longer produce fertile offspring together. Thus, separation can contribute to the formation of a new species; it does not make organisms identical, create food, or remove chromosomes.
Frequently asked questions
What is the correct answer to this question?
Different changes can accumulate in separated groups
Why is this the correct answer?
The governing concept is reproductive isolation in evolution. When a population becomes separated, its groups may stop interbreeding regularly. Mutations, inherited variations, natural selection, and environmental pressures can then act differently in each group. Over many generations, the accumulated differences may become so large that the groups can no longer produce fertile offspring together. Thus, separation can contribute to the formation of a new species; it does not make organisms identical, create food, or remove chromosomes.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Evolution and speciation.
