A rabbit is a weak, timid animal that is always surrounded by numerous enemies. It is small, has fur, has a short tail, and has pointed ears. As a result, it has large ears that help it hear even the smallest sounds. (1) ........ . Because of this, the rabbit is able to spot its enemies in time and flee to a safer location. By repeatedly licking its forepaws and rubbing them against the surface of its ears, a rabbit cleans its ears.
To keep its ears clean, it does this. The desert is very hot during the day and very cold at night for the jackrabbit as the lives there. (2) ......... .
By controlling the flow of blood through the many blood vessels in its large, thin ears, it can lose heat when it is hot or take in hear when it is cold.
A. A rabbit has 28 teeth that never stop growing as it grows.
B. The jackrabbit's long ears not only let it hear enemies, but they also help it regulate its body temperature.
C. Nearly every sound wave that enters the air is picked up by the large ear and carried into the inner ear.