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Below is a food web from Shenandoah National Park, a forest ecosystem in Virginia.
A food web of a forest ecosystem in Shenandoah National Park in Virginia. Organisms include a persimmon tree, a black bear, a swallowtail catterpillar, a beaver, a black racer snake, a gray fox, and a bobcat, a bolete fungus, a pine vole, a parasol fungus, and a silver maple tree. Arrows point between organisms to show how matter moves through the food web.
A food web models how the matter eaten by organisms moves through an ecosystem. The arrows in a food web represent how matter moves between organisms in an ecosystem.
Which two of the following organisms are secondary consumers in this food web?
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