Food chains are relatively short because

Assessment: WAEC SSCE - Biology - 2009 (Objective) Subject: Biology

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Food chains are relatively short because
Answer Details
Food chains are relatively short because of energy loss at each trophic level. As energy flows from one trophic level to another, it is lost as heat and through metabolic processes, reducing the amount of energy available to the next level. This energy loss means that there is not enough energy to support many trophic levels, leading to relatively short food chains. Additionally, as food chains become longer, the amount of energy available at the top of the chain becomes very limited, further limiting the number of trophic levels.
Read lesson note on Energy Transformation In Nature (WAEC)
Read lesson note on Food Webs And Trophic Levels (WAEC)
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