A lake becomes polluted with nitrogen fertilizer. Algae over…

A lake becomes polluted with nitrogen fertilizer. Algae overgrow. Based on the cases covered in lecture, what is the main way in which this leads to the death of fish? Explain the steps, including any roles of decomposition, limiting nutrients, and oxygen. (7 pts.)

Fungi play many important ecological roles! How do fungi pa…

Fungi play many important ecological roles! How do fungi partner with trees in a way that benefits both organisms? In your answer, say what the fungus gets from the partnership and what the plant gets from the partnership. (3 pts) What’s one other role fungi play in ecosystems? Be specific. (3 pts)