Answer:
divergent evolution
Explanation:
Two species that are closely related become increasingly different through divergent evolution.
Divergent evolution is a process through which organisms of the same species diverge to become different species primarily as a result of experiencing different abiotic factors.
The experience of different abiotic factors leads to different selection pressure acting on the 2 populations. This leads to accumulation of phenotypic differences between the two populations and eventually to speciation.
