The arctic is very cold and there are limited sources of food. There are no trees and short growing seasons for living things. The ocean supports animal life.

1
The arctic is very cold and there are limited
sources of food. There are no trees and short
growing seasons for living things. The ocean
supports animal life.
2
The desert in North America is dry and hot. Most
plants grow low to the ground. Deserts have
limited precipitation.
3

• Polar bears live in the arctic. They have
  blubber under their skin and a thick coat of
  white fur to keep them warm. Their white fur
  also gives them camouflage in the snow. Polar
  bears have large paws to help them walk on the
  snow, sharp teeth and claws to catch and eat
  other animals, and small ears to minimize heat
  loss.

4

• Gila monsters live in the desert. They use their
  claws to burrow in the ground and escape

the heat. Their spotted coloration provides
camouflage. Gila monsters can eat infrequently
because they store fat in their tail. They use
their tongue to detect prey and gather
information about their environment. Also, gila
monsters can inject venom through their teeth.