How is natural selection in the evolution of long necks in giraffes BEST explained?

Question

Shorter necked giraffes were killed by long-necked giraffes.

Giraffe necks grew longer because of the bone structure of the animals.

Giraffes with longer necks survived because they were better suited to the environment.

Long-necked giraffes mated only with other long necked giraffes.

Answer 1

The best explanation for the evolution of long necks in giraffes in the context of natural selection is:

Giraffes with longer necks survived because they were better suited to the environment.

This explanation aligns with the principles of natural selection, where individuals with traits that give them an advantage in their environment are more likely to survive and reproduce, passing those advantageous traits to the next generation. In the case of giraffes, longer necks may provide better access to food sources (e.g., leaves high up in trees) and improve their ability to see predators, leading to a survival advantage.