Question

in observing the \after\ curve (blue line), what can be determined about individuals at the lower end (blue arrow) of this directional selection graph? they have a higher fitness than those at the center and higher end. their fitness is the same as individuals at the center and higher end. they have lower fitness than those at the center and higher end.

Explanation:

In directional selection, individuals at the lower end of the curve (as indicated) typically have lower fitness. This is because directional selection favors one extreme phenotype over others. The individuals at the lower end are not favored by the selective pressure compared to those at the center and higher end.

Answer:

They have lower fitness than those at the center and higher end.