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At each level of the food chain, what happens to about 90% of the energy? a. gained as energy b. lost as heat c. converted into unusable compounds d. excreted as waste
At each level of the food chain, 90% of the energy is lost as heat.
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Asked 6/18/2014 6:45:17 PM
Updated 6/18/2014 11:00:00 PM
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At each level of the food chain, 90% of the energy is lost as heat.
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Added 6/18/2014 11:00:00 PM
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