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9 November, 12:23

If the grass in this example had 25,000 Kcal of energy,

approximately how much would you expect of that energy to

be stored in trophic level 4?

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Answers (1)
  1. 9 November, 12:44
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    You would expect 25 Kcal of energy stored in trophic level 4.

    Explanation:

    Energy flow in the ecosystem follows 10% law according to which 10% of the energy in the lower trophic level is transferred to the next trophic level.

    In this example grass belongs to the first trophic level, producers.

    Energy of grass=25000Kcal

    Energy transferred to trophic level 2=10% of 25000=2500

    10% of the energy in trophic level 2 is transferred to trophic level 3.

    Hence energy at trophic level 3=10% of 2500=250Kcal

    Energy transferred to trophic level 4=10% of energy in trophic level 3

    =10% of 250=25Kcal

    Energy to be stored in trophic level 4=25Kcal
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