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Which of the following accurately describes the flow of energy through ecosystems?

AAll of the energy found within a primary producer is transferred to a first-level consumer.
BA third-level consumer would store a greater portion of energy from the previous level than would a second-level consumer.
CEnergy is always passed from the consumer to the primary producer.
DThe percentage of the original energy from producers that's available to the consumer is quite small.

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d. The percentage of the original energy from producers that's available to the consumer is quite small.

The 10% energy rule.
This energy rule states that every energy that is transferred from one organism to the other decreases by 10%. For example, a plant has created food thru photosynthesis gained 1000J and a cow eats it it would receive an energy of 100J and a human eats the cow would receive 10J.

the answer is D. the percentage of the original energy from producers that's available to the consumer is quite small.

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