Untitled Lesson

Open Ended

When a rancher puts cattle in a pasture, what happens to the amount of grass in it?

Open Ended

If someone adds thousands of small fish to a lake, how would the number of big fish change?

• Click Advance year a couple times to see two years of growth. 

• Remove all Deer from the forest by clicking the minus (-) button until none remain.

• Click Advance year a couple more times.

Open Ended

How did removing deer affect the tree population?

Open Ended

Why do you think this happened?

Open Ended

How did losing deer affect the mushrooms?

Open Ended

Where do you think trees get the nutrients they need to grow?

Open Ended

Based on your hypothesis, how will the tree population change if ALL other organisms (deer, bears, and mushrooms) are removed from the forest?

Click the FOREST tab. Click the plus (+) button for mushrooms several times. Click Advance year a few times. Select the DATA tab.

Open Ended

How did adding mushrooms affect trees?

Open Ended

How do bears get the energy and nutrients they need?

Open Ended

Based on your hypothesis, which population(s) would be hurt if bears were added?

Multiple Choice

Mushrooms are

• Producers

• Consumers

• Decomposers

Poll

If bears increase, mushrooms will

• Increase

• Decrease

Poll

If trees increase mushrooms will

• Increase

• Decrease

Poll

If deer increase mushrooms will

• Increase

• Decrease