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
Answer
3.7
(253 Votes)
Luna
Professional · Tutor for 6 years
Answer
B. Directional selection
Explanation
Natural selection involves the different reproductive success of individuals based on their inherited characteristics. Stabilizing selection favors average traits, reducing variation. Disruptive selection favors extremes, increasing trait variation. Directional selection favors one extreme. Giraffes with longer necks benefit in limited food scenarios, an example of directional selection because this desirable trait shifts the population towards one extreme.