Which factor can help in speciation?
Answer and explanation
Correct answer: Geographical isolation
The governing concept is speciation, the formation of new species. When a population becomes geographically isolated, its groups have little or no interbreeding. Mutations, variations, genetic drift and natural selection can then act differently in the separated groups. Over many generations, their differences may become large enough to prevent successful reproduction between them. Therefore, geographical isolation is the suitable factor; the other options are unrelated to the origin of species.
Frequently asked questions
What is the correct answer to this question?
Geographical isolation
Why is this the correct answer?
The governing concept is speciation, the formation of new species. When a population becomes geographically isolated, its groups have little or no interbreeding. Mutations, variations, genetic drift and natural selection can then act differently in the separated groups. Over many generations, their differences may become large enough to prevent successful reproduction between them. Therefore, geographical isolation is the suitable factor; the other options are unrelated to the origin of species.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Evolution and speciation.
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