AP BIOLOGY

Detailed explanation-1: -Nocturnal desert animals keep cool by being active at night, whereas some other desert animals get away from the sun’s heat by digging underground burrows. Other common adaptations seen in desert animals include big ears, light-colored coats, humps to store fat, and adaptations that help conserve water.

Detailed explanation-2: -Some animals have developed salt glands, a physical adaptation that allows the secretion of salt without the loss of water. The absence of sweat glands, and the concentration of urine are other physical adaptations made by desert animals.

Detailed explanation-3: -For example, many trees shed their leaves and become dormant during very cold or dry seasons. Animals in very cold or dry biomes also must adapt to these abiotic factors. For example, adaptations to cold include fur or fat, which insulates the body and helps retain body heat.

Detailed explanation-4: -Hot and dry desert. The four major North American deserts of this type are the Chihuahuan, Sonoran, Mojave and Great Basin. Others outside the U.S. include the Southern Asian realm, Neotropical (South and Central America), Ethiopian (Africa) and Australian.