Please enable JavaScript.

Coggle requires JavaScript to display documents.

Ecosystems 6.3.1 - Coggle Diagram

- - - - Arrive as spores or seeds carried by wind or by droppings of birds
      - Have number of adaptions:
        
        Produce large quantities of seeds or spiders
        
        Seeds that germinate rapidly
        
        Photosynthesise
        
        Tolerance to extreme environments
        
        Ability to fix nitrogen from atmosphere
    - - Increase in biodiversity from pioneer species
      - Decomposition of pioneer species produced humus
      - Pioneer species may provide food fo animals or insects that will colonise the area
      - Intermediate community may contain seral stages
    - - Final stage of succession reached
      - May have slight decrease of biodiversity as large trees can outcompete ground level shrubs
  - - - Attracts insects & animals
      - Decreases competition for food
      - More decomposers & microorgaisms
    - - Decreases chance of soil errosion due to roots
      - Decreases water level in soil
- - - - Not ingested
      - Not digested/assimilated
      - Excreted
      - Lost as heat from respiration
- - - - Therefore proteins (inc enzymes)
        
        E.g. haemoglobin, collagen, keratin, Adrenalin
  - - - Azotobactor (free-living in soil)
      - Rhizobium (in root nodules)
    - - Ammonium is assimilated into nitrogen compounds (e.g. DNA, RNA, amino acids, etc…)
    - - Both of these processes are called nitrification
    - - When these bacteria are exposed to anaerobic condition they break down the nitrates for the O2
    - - https://docs.google.com/document/d/19k10t--OUWEflW2sMrT10Bgb5okGy9t4boV92hloRSo/edit