Question

What happens when a river splits a population into two populations that cannot interbreed?

• A. Speciation
• B. Adaptive radiation
• C. Convergent evolution
• D. Natural selection
• E. Lamarckian evolution

Answer 1

Answer: (A)

Speciation

The splitting of existing species into daughter species or transformation of existing species into the new one without formation of any lineage species is termed as speciation. When the formation of a river splits the existing population into two new populations, there is formation of new species. These species are reproductively isolated and cannot interbreed.

Thus, the correct answer is option 'Speciation'.