Final answer:
Stabilizing selection is a type of natural selection where the frequency of the mean phenotype decreases while the frequencies of extreme phenotypes increase.
Step-by-step explanation:
Stabilizing selection is a type of natural selection where the frequency of the mean phenotype decreases while the frequencies of extreme phenotypes increase. This occurs when natural selection favors individuals with an average phenotype and selects against extreme variation. An example of stabilizing selection is seen in a population of mice in the woods, where the mice that best blend in with the forest floor have a higher chance of survival and reproduction.