AP BIOLOGY

Detailed explanation-1: -Reptiles and amphibians are absent because of the extremely cold temperatures. While many of the mammals have adaptations that enable them to survive the long cold winters and to breed and raise young quickly during the short summers, most birds and some mammals migrate south during the winter.

Detailed explanation-2: -Migration and hibernation are examples of behavioral adaptations used by animals in the Arctic tundra. The fact that many animals do not live year-round in the tundra means they leave or migrate for a length of time to warmer climates. Hibernation is a combination of behavioral and physical adaptations.

Detailed explanation-3: -Living in the Tundra Animals that live on the tundra must be able to adapt to very cold temperatures. They must also be able to raise their young during the very short summer months. Animals found in the tundra include the musk ox, the Arctic hare, the polar bear, the Arctic fox, the caribou, and the snowy owl.