The producer in an energy pyramid contains about 1,000 kcal of energy. About how much of this energy is used by the producer or lost as heat to the environment? 10 kcal 90 kcal 100 kcal 900 kcal

900 kcal

Explanation:

According to 10% law , only 10% of total energy of primary consumer is transferred to secondary consumer . The rest is lost either to the environment as heat or consumed by the primary consumer .

So out of 1000 kCals of energy 900 kCals will be lost to the environment as heat or consumed by the the producer .

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