The Desert Biome

4. Type of desert that receives minimal amounts of rain and temperatures can reach up to 50 degrees celsius (example: Sahara desert)
6. A type of plant adapted to living with very little water
9. The key for plants and animals to survive
11. Water that comes to the ground in a form or an other.
13. Animals using their skin colours to hide themselves
14. An example of plants living close together to keep themselves warm
19. The source of water in cold deserts (three words separated by '/')
20. What polar bears have underneath their fur to keep them warm

1. Why cactuses have spikes instead of leaves, to prevent ...
2. The stage in which plants stay in some deserts, where they remain seeds until there is enough water around.
3. type of desert close to the sea, with cold winters and long summers, and a variety of plants
5. The meaning of "dēsertum", origin of word 2
7. What cactuses have to prevent animals from eating them
8. A large area characterized by its vegetation, soil, climate and wildlife.
10. How we call animals that only come out at night to survive the extreme temperatures.
12. type of desert with extreme low temperatures, hardly any life, usually found at high elevations (example: Antarctica)
15. Type of desert with seasons reasonably defined, shrubby and grassy plants (example:Sagebrush desert in Utah,USA)
16. The most limited factor in the desert, life depends on it
17. A dry, terrestrial biome that receives very little rainfall
18. When there is no precipitation for a long time, causing a lack of water