Question

Horses are much larger today than their two-foot tall ancestor, mesohippus. Geologists believe the change in size was the result of changing environments, from tropical forests to a grassland habitat.
Larger size would be an advantage for survival in this new habitat because
A)
taller horses could reach the leaves that grow high on trees.
B)
larger horses could find food easier than the shorter horses.
C)
the larger horses were better camouflaged than the smaller horses.
D)
larger horses had longer legs and could run faster to escape predators.

Answer 1

The correct answer is D

Answer 2

Horses in the old times were smaller because of the softer grass to step on in the forests. However, as time passes, the living shifted to survival from the predators. This strengthens the limbs of horses and lifting the body from the ground in the process of running at great speeds. The answer here is D. larger horses had longer legs and could run faster to escape predators.