Tortoises in the Galápagos possessed neck lengths unique to each island. Neck lengths appear to be an adaptation to which selective agent?

Question

Quizplus · Accepted Answer

The neck lengths of tortoises in the Galápagos Islands are adaptations to the type of vegetation available to eat on each island. Different islands have different types of vegetation, some of which may be easier to reach with longer or shorter necks, leading to natural selection for neck lengths that are best suited to the available food sources.

Tortoises in the Galápagos Possessed Neck Lengths Unique to Each