Nutrient Pollution lab.docx

Nutrient Pollution lab.docx - Question 1 2 out of 2 points...

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Question 1 2 out of 2 points Exercise 1 "Starting Up," question 5.1: When phytoplankton die, in the simulation, they change color and then fall to the bottom of the lake. Selected Answer: Tru e Correct Answer: Tru e Question 2 2 out of 2 points Exercise 2 "P in the Water," question 6.4: On your graph of Phosphorous levels (x-axis) versus Dissolved Oxygen concentration (y-axis), how would you describe the relationship of these variables? Selected Answer: As Phosphorous in the system increased , the Dissolved Oxygen concentration decreased . Correct Answer: As Phosphorous in the system increased , the Dissolved Oxygen concentration decreased . Answer Feedback: Right, as Phosphorous increases, there are more Geen Algae, and it uses up the dissolved oxygen to decay them when they die. Question 3 2 out of 2 points Exercise 4 "Toxins!" question 3.4: The graph constructed in this experiment does show evidence of biomagnification in this lake.
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