Question

select the correct answer. some tortoises that feed on grasses were observed on an island. some years later, an environmental change caused the grasses to grow a bit higher off the ground. what evolutionary feature will you expect to see in the tortoises on the island? a. the tortoises will develop longer necks. b. the tortoises will develop thicker shells. c. the tortoises will develop longer tails. d. the tortoises will develop thicker tongues.

Explanation:

Since the grasses grow higher off the ground, tortoises would need to reach higher to feed. A longer neck would be an advantageous trait for accessing the food source. Thicker shells (B) would protect from predators but not help with feeding on higher - growing grass. Longer tails (C) have no direct relation to feeding height. Thicker tongues (D) also do not aid in reaching higher vegetation.

Answer:

A. The tortoises will develop longer necks.