http://www.youtube.com/watch?v=Ua_ZKHPvqSw&feature=related
- Trophic - feed - different feeding levels
- Plant= Photosynthesis -> Fly=Plant -> Flycatcher=Fly -> Hawk=Flycatcher
- Producers Primary consumer Secondary consumer Tertiary Consumer
- Light energy > Chemical Energy > Chemical Energy > Chemical Energy
- Death - Decomposer - recycling of molecules ex: Fungi, Bacteria
- Decomposes deceased organisms in to nitrates
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