5/21/2011

4.4- Trophic Levels





Trophic = Feed

  • Producer turns light energy into chemical energy
  • Primary consumer changes the form of the chemical energy 
  • Secondary consumer also changes the form of the chemical energy
  • Tertiary consumers change chemical energy to chemical enrgy
  • All organisms die and are broken down by decomposers (fungi and bacteria)
  • Decomposers are important in recycling of molecules
  • They often break down the complex molecules into nitrates and phosphates

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