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Social Sciences 19 Online
OpenStudy (anonymous):

There are 4,000 units of energy available to grass at the first trophic level of an ecosystem. If the grass is eaten by a mouse and the mouse is eaten by an owl, how many units of energy will be left for the bobcat that eventually eats the owl? A) 4 B) 40 C) 400 D) 2,000

OpenStudy (anonymous):

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