Polar Region Vocabulary

2. specific fat layer between skin and muscle
7. grow in sheltered places on bare rock, their remains provide food for mosses
9. takes nitrogen from the air and converts it to ammonia to produce amino acids
10. fine, traps a layer of air warmed by the body
14. provides insulation by trapping air, warmed by the body
15. courser and waterproof
16. allows animals to move over snow and ice easier
18. specific function or position withina communityof organisms
19. prevent heat loss
20. dome-shaped hills near the edge of an ice sheet

1. ground that may be frozen beyond the permanent ice
3. carcass of a dead animal
4. thicker, trap more air and are white
5. allows animals to remove heavy accumulations of snow and ice to access food
6. allows many warm-blooded animals to survive harsh polar conditions by living in close quarters in a dormant condition
8. allows many animals to maintain their body temperature even though the environmental temperature surrounding them plunges well below zero
11. long stems that some plants produce
12. allows some animals to blend with their environment
13. allows smaller animals to survive away from the harsh polar conditions
17. land of sedges, mosses, grasses, and lichens growing in patches