What is Biome? A biome is a large geographical area of distinctive plant and animal groups, which are adapted to that particular environment. The climate and geography of a region determines what type of biome can exist in that region.
The tundra is a very fragile environment. The extremely cold temperatures makes it a difficult environment to survive in during the winter, and plants and animals have a hard time coping with any extra stresses and disturbances.
A desert is a landscape or region that receives an extremely low amount of precipiation , less than enough to support growth of most plants. Most deserts have an average annual precipitation of less than 400 millimetres