Usually very hot
Chilly at night
10 inches or less of rain per year
Precipitation is mainly rain
Located mostly around the Equator
Covers 1/5 of world's surface
Many varieties of plants and animals live there
Plants of the desert can usually store water
Animals can get water from unusual places
Plants and animals that live there can adapt to the extreme weather conditions.
Some animals avoid heat because they are nocturnal.
Some animals avoid heat by staying underground.
Deserts plants can store water.
Tundra Biome:
Soil is frozen most of the year.
10 inches or less of rain per year
Covers 1/5 of world's surface
Some plants grow close together to protects themselves from the cold.
Biome farthest north
Trees are small.
Plants and animals that live there can adapt to the extreme weather conditions.
Very short summer - some plants and small organisms may have a chance to grow.
Animals are able to adapt to cold.
Plants are small and grow close to the ground.
Water is not available most of the year.
http://www.blueplanetbiomes.org/desert.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/tundra.php