How can geographical isolation help in speciation?
Answer and explanation
Correct answer: Different variations can accumulate in separated groups and increase reproductive isolation
A mountain, river, or other geographical barrier can separate members of one population and reduce their interbreeding. Mutation, recombination, natural selection, and drift may then produce different changes in the isolated groups. If reproductive isolation becomes strong, a new species may arise. Thus option A is correct; the other choices contradict how speciation occurs.
Frequently asked questions
What is the correct answer to this question?
Different variations can accumulate in separated groups and increase reproductive isolation
Why is this the correct answer?
A mountain, river, or other geographical barrier can separate members of one population and reduce their interbreeding. Mutation, recombination, natural selection, and drift may then produce different changes in the isolated groups. If reproductive isolation becomes strong, a new species may arise. Thus option A is correct; the other choices contradict how speciation occurs.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Evolution and speciation.
