In a certain ecosystem, caterpillars eat grass. Field mice eat the caterpillars and seeds from the grass. Snakes eat the mice. Hawks eat both the snakes and mice. Such an arrangement would be considered a(n):
A. food web.
B. food chain.
C. ecosystem.
D. second trophic level.
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In a certain ecosystem, caterpillars eat grass. Field mice eat the caterpillars and seeds from the g...
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