polar biome crossword puzzle

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Across
  1. 2. Plants that live up to two years.
  2. 4. animals without a backbone are called_________
  3. 6. allows animals to blend with the environment
  4. 10. something that allows animals to remove lots of snow are called _______
  5. 12. a small bulb that breaks off and the roots grow into a new plant.
  6. 15. allows animals to maintain their body temperature in harsh conditions.
  7. 17. dome shaped hills called_____
  8. 18. some plants use this to get amino acids.
  9. 19. Provides isolation by trapping air that the body warms.
  10. 20. allows smaller animals to hide food and themselves from predators.
Down
  1. 1. plants produce long stems, that break off and lay down roots.
  2. 2. the frozen earth is called__________
  3. 3. allows warm blooded animals to survive harsh winter conditions.
  4. 5. ears: Something that prevents heat loss and is small is called________
  5. 7. fine and traps warm layers trapped by the body
  6. 8. feathers: trap air, are white and big.
  7. 9. a specific characteristic within a community of organisms.
  8. 11. courser and waterproof.
  9. 13. Are the first living organism to arrive, can grow on bare rock.
  10. 14. oily, fat layer that is between the skin and muscle.
  11. 16. the land of sedges,mosses, grasses and lichens is called_______