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1. What is the discussion mainly about?
2. What does the professor mean when she says this:
3. According to the discussion, how do salmon find their way to their home stream? Click on 2 answers.
4. Listen again to part of the discussion. Then answer the question.
Why does the student say this:
5. According to the discussion, why are salmon an important link in the food chain?
6. What can be concluded from this statement: