explain the how energy flows through different levels in nature?

Plants which are producers utilize the energy of sun and by the process of photosynthesis produces food. Plants trap some energy of sun in them.  When plants are eaten up by herbivores, a portion of the energy stored in plants flows in herbivores. Carnivores take up energy by eating other herbivores. In this way energy flows from one trophic level to the next. 

 

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