Question

question: how did natural selection lead to speciation?

Explanation:

Natural selection acts on genetic variation within a population. When populations become geographically or reproductively isolated, different selective pressures can cause divergence in traits over time. As genetic differences accumulate, the populations may become unable to interbreed, leading to the formation of new species.

Answer:

Natural selection acts on genetic variation in populations. Isolation and different selective pressures cause divergence in traits. As genetic differences build - up, populations can no longer interbreed, resulting in speciation.