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    Answer 4 questions correctly in a row.

Below is a food web from a tundra ecosystem in Nunavut, a territory in Northern Canada.
A food web of a tundra ecosystem in Nunavut, Northern Canada. Organisms include a parasitic jaeger bird, a rough-legged hawk, a grizzly bear, a snowy owl, a short-tailed weasel, an Arctic fox, a barren-ground caribou, an earthworm, a brown lemming, a bilberry bush, a bear sedge shrub, lichen, and a mushroom. 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 decomposers in this food web?
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