Question

11 multiple choice 2 points over many generations, giraffes developed longer necks to reach food higher in trees. this change is an example of: artificial selection natural selection behavioral isolation genetic drift

Explanation:

• Artificial selection involves human intervention in breeding. But here, there's no human involvement.
• Natural selection is the process where organisms better adapted to their environment survive and reproduce. Giraffes with longer necks could reach food (better adaptation) and passed this trait.
• Behavioral isolation is about reproductive behavior differences preventing inter - breeding. Not relevant here.
• Genetic drift is random change in allele frequencies. This is about adaptation, not randomness.

Answer:

Natural selection