Which of the following most likely describes how the interaction between bears and salmon influences nitrogen dynamics in the environment?AWhen bears consume salmon, they leave parts of the carcasses on the ground, which decompose, releasing nitrogen into the environment.BWhen salmon swim upstream to spawn, bears migrate to the rivers and deposit nitrogen from the forest with their excrement.CBears are a reservoir for nitrogen because they are the top consumer in the environment.DBears urinate in rivers and streams, which provides nitrogen for the salmon.

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