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Stage 1
Answer 2 questions correctly in a row.
Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.

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 of these organisms contain matter that was once part of the bilberry? Select all that apply.
earthworm
Arctic fox
mushroom
grizzly bear
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