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6 July, 21:48

Algae → larva of a prawn → anchovy → eel. In this food chain, algae obtains about 4,000 KJ of energy from the sun. What is the amount of energy that will be available to the eel and why?

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  1. 7 July, 01:22
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    The energy passed to each subsequent trophic level in food chain is 10% of the energy in the last trophic level. Therefore:

    Algae - 4,000 kJ

    Larva - 400 kJ

    Anchovy - 40 kJ

    Eel - 4 kJ

    The reduction in the energy passed is due to the fact that when an organism consumes a given amount of energy, it is utilized for different functions within the organism's body and is lost in a form that can not be recovered, for example, as heat energy.
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