A Population of Organisms Is Divided by a Large Seismic

Multiple Choice

A population of organisms is divided by a large seismic event.The populations remain split for hundreds of years.One side of the split population is exposed to high levels of ultraviolet radiation,while the other side is primarily exposed to moderate levels of ultraviolet radiation as had been in the shared environment in the past.What hypothesis might you derive with regard to how these populations have responded to ultraviolet radiation?

A) The populations have likely differentiated due to continued gene flow.
B) The populations have likely differentiated due to adaptive variation.
C) The populations have likely not differentiated because of genetic drift.
D) The populations have likely not differentiated but there may be adaptive variation and new species.