In any given ecosystem, energy is transformed by organisms at three distinct levels of interaction. These levels of energy make these organisms as producers, consumers or decomposers of energy Huddart and Stott (2010, p651). The energy is often transformed down these series or levels in one form or another of chemical energy. It was identified in the first paragraph that the sun is the main source of energy.
Plants and phytoplanktons then transform this radiant light and carbon dioxide to chemical energy in form of carbohydrates/carbon compounds and dissipate the byproduct oxygen through photosynthesis. This process transforms light energy and carbon dioxide into organic matter that is food for the next energy level and oxygen used by all living organisms in the ecosystem Huddart and Stott (2010, p651).
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