Monday, 23 May 2011

4.4 Trophic Levels

Trophic - to feed


Example:




Producers


Plants (photosynthesis) - Light energy ---> Chemical energy

Primary consumer

Herbivore - Chemical energy (Plant) ---- digestion changes to -----> Chemical energy (Fly)

Secondary consumer


Carnivore - CE ---> CE

Tertiary consumer


Top carnivore - CE --> CE

--- eventually all levels ---> DEATH

Broken down by 'decomposer' organisms (fungi, bacteria)

---- Recycles complex molecules -----> Nitrates & Phosphates 



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