When the intermediate phenotype of a trait is being selected for and the extreme phenotypes are being selected against, the population is probably undergoingMultiple choice question.disruptive selection.directional selection.sexual selection.stabilizing selection.

Disruptive selection is a mechanism of natural selection thatMultiple choice question.favors two or more extreme phenotypes in a population.favors the intermediate phenotype in a population.favors only one extreme phenotype in a population.is seldom seen in natural populations.

The mode of natural selection in which two or more extreme phenotypes are fitter than the intermediate phenotype isMultiple Choicedirectional selection.stabilizing selection.disruptive selection.artificial selection.uniformitarianism.

Which type of selection can occur when individuals with phenotypes at the upper and lower ends of the curve have higher fitness than individuals near the middle?A.Directional selectionB.Stabilizing selectionC.Natural selectionD.Disruptive selection

Directional, disruptive, and stabilizing are all types of ______, in which certain phenotypes are favored over others.Multiple choice question.migrationnatural selectionmutationgenetic drift

Which type of selection favors common phenotypes and tends to eliminate variation?Multiple choice question.Directional selectionPositive frequency-dependent selectionOscillating selectionNegative frequency-dependent selection