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GROWTH REQUIREMENTS FOR MICROORGANISMS - Coggle Diagram

- - - - proper temperature
      - proper pH: the extent of acidity or alkalinity
  - - - oxygen
        
        there are 3 classes of microorganisms
        
        obligate aerobes
        
        grow only with oxygen
        
        obligate anaerobes
        
        grow only without oxygen
        
        facultative anaerobes
        
        grow with and without oxygen
      - carbon source
        
        there are 2 groups of microorganisms
        
        heterotrophs
        
        need organic forms of carbon
        
        autotrophs
        
        don't need organic forms of carbon