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CH. 27 Biomes (The Current World Biomes (Moist Temperate Biomes (Temperate…

- - - - dominated by giant long-lived conifers
    - - bases of mountains subalpine forests at higher elevations
    - - cold winters and warm summers high precipitation
    - - southern edge of oak/pine component of deciduous forest
  - - - central plains of North America
      - prairie
    - - like a forest but trees are spaced far
      - same but trees are shrubs
    - - few rainfall
    - - highest point which trees survive on a mountain
  - - - short growing season of three months
      - permafrost
    - - south of arctic tundra
      - across Canada and Alaska
  - - - close to equator
    - - lower rainfall develop as thorn-scrub
- - - - desert islands
        
        extremely dry
        
        no fresh water
      - rain shadow
        
        decreased rain on the landward side of mountains
- - - - Gondwanaland
        
        giant continent in Southern Hemisphere
        
        South America, Africa, India, Australia, Antarctica
    - - Laurasia
        
        400 million years ago
      - Pangaea
        
        all land located together
        
        one supercontinent
    - - Tethys Sea
        
        waterway between northern and southern continents