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Chapter 23: Angiosperms (Novel features (decreasing gameotphyte size,…

- - - - vessles
      - sieve-tube members
    - - William Bond
- - - - continents break apart
      - increase diversity of climate
      - vegetation changes
    - - Ice Age
        
        altered hydrologic balances near poles
        
        snow accumulation
        
        glaciers
        
        "Pleistocene epoch"
      - Affected by Humans
        
        protoagriculture
        
        domesticated evolution of weeds
        
        brought new ornamental plants
- - - - tepals
      - stamens
      - carpels