The graphs show three types of natural selection

Question

Which table correctly identifies and describes the type of each selection shown in the graphs?
Letter Type of Selection Description
X stabilizing selects against the average phenotype of a population, favoring extreme traits
Y directional changes in the phenotype of a population to what is favored by the environment
Z disruptive selects against extreme phenotypes in favor of average traits, decreasing diversity


B.
Letter Type of Selection Description
X directional changes in the phenotype of a population to what is favored by the environment
Y disruptive selects against the average phenotype of a population, favoring extreme traits
Z stabilizing selects against extreme phenotypes in favor of average traits, decreasing diversity


C.
Letter Type of Selection Description
X directional changes in the phenotype of a population to what is favored by the environment
Y stabilizing selects against the average phenotype of a population, favoring extreme traits
Z disruptive selects against extreme phenotypes in favor of average traits, decreasing diversity


D.
Letter Type of Selection Description
X disruptive selects against extreme phenotypes in favor of average traits, decreasing diversity
Y stabilizing changes in the phenotype of a population to what is favored by the environment
Z directional selects against the average phenotype of a population, favoring extreme traits
a
A
b
B
c
C
d
D

Answer 1

The correct table is:

B.
Letter Type of Selection Description
X directional changes in the phenotype of a population to what is favored by the environment
Y disruptive selects against the average phenotype of a population, favoring extreme traits
Z stabilizing selects against extreme phenotypes in favor of average traits, decreasing diversity