Question

giraffes with longer necks can reach more leaves to eat. this is an advantage in environments in which food is limited. in terms of natural selection, this is an example of: _____________. a stabilizing selection b directional selection c disruptive selection d all of the above

Explanation:

In directional selection, one extreme of a trait is favored over others. Giraffes with longer necks have an advantage in getting food in food - limited environments, so the trait of long necks is being selected for in one direction. Stabilizing selection favors the average trait, and disruptive selection favors both extremes over the average, which are not the cases here.

Answer:

B. Directional selection