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How does a raw banana relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels? Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient?

  • Science -

    How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels? Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient?

  • Science -

    Energy Calculator
    Trophic level Type of producer or consumer Total energy available from previous level (100%) Energy from total gained by consumer (10%) Energy from total lost when consumed (90%)
    First Primary producer 84 N/A N/A
    Second Primary consumer 84 8.40 75.6
    Third Secondary consumer 8.4 0.84 7.56
    Fourth Tertiary consumer 0.84 0.084 0.756


    The fruit that I researched was the blueberry. Every time a raw food item is consumed the energy is decreased by 10 percent. The amount of energy gained compared to the amount of energy lost in the second through fourth levels equals the total of the energy available. The energy lost is 90 percent and the energy gained is 10 percent. I do think humans should eat lower on the food chain because we will get more out of our food. It is a lot healthier for us and helps us create more energy so that we can feel better.

  • Science -

    Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient? I say yes what do you think?

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