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Ecology Lab Simulation: Q&A

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Submitted By 277628865
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1. Go to http://www.learner.org/courses/envsci/unit/text.php?unit=4&secNum=0. Click on “Interactive Labs” link which is under the “Content for This Unit”.
2. Read the “Overview” and “The producers”.
3. Click on “Step 1”
4. Follow the directions in the paragraph.
5. Then, click on the “Open Simulation” link on the top right and run the simulation.
6. Record data in the data table and answer all questions below.

More information will be provided by TA in the class.

A. The Producers

Run the simulation and enter the value in the box

Lesson 1: Step 1 Plant A Plant B
Prediction: starting population 5000 5000
Prediction: ending population 10000 0
Starting population 6114 3427
Ending population 10000 0

Answer all questions
Producers
Step 1
1. What assumptions does this model make about co-dominance as well as the general terrain of the ecosystem?
Plant A competes with plant B, because as the number of plant A goes up, the number of plan B goes down. So they do not have co-dominance. They cannot live in the same terrain.
2. Do you find one producer to be dominant? Why might one producer be dominant over another?
Plant A is dominant over plant B, because plant B died out in the end, but plan A survived and left.

Step 2: Run the simulation and enter the value in the box
Lesson 1: Plant A Plant B Herbivore A
Prediction: starting population 10000 0 0
Prediction: ending population 5000 0 5000
Starting population 10000 0 0
Ending population 3333 0 2223

Answer all questions
Step 2
1. Does adding the herbivore establish a more equal field? Is one producer still dominant over the other? Why might one producer be dominant over another?
No, because Plant A starts decreasing while Plant B still remind 0, however, the number of Herbivore A goes up rapidly. Plant A is still dominant over Plant B, because it has better

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