Context: 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.
In this food web, which organism contains matter that eventually moves to the earthworm?
A. mushroom
B. short-tailed weasel
Choose the right answer from the options and respond with its letter.
Answer: B