Question

Black rabbits (BB) and white rabbits (bb) are
both able to survive because they can
camouflage into the white and black rocks in
their environment. However, the intermediate
gray rabbits (Bb) do not survive. This results in
only white and black rabbits.

Disruptive

Stabilizing

Directional

Answer 1

The scenario you described is an example of **disruptive selection**.

In disruptive selection, individuals at both extremes of a trait distribution—here, the black rabbits (BB) and white rabbits (bb)—are favored over intermediate phenotypes—in this case, the intermediate gray rabbits (Bb) that do not survive well in the environment. This leads to a decrease in the frequency of the intermediate phenotype while the frequency of the extreme phenotypes increases.