Simple Population Model

This is a basic model that shows population over time. Population is a stock, fed by a birth flow. The birth flow represents change in population due to reproduction. Birth rate is a term that feeds into the birth flow.

Nova Online:  Simple Population Model (opens in new tab)

Running this model:
1. Click on the “Capture” button in the tool bar.
2. Click “Load” next to “Capture.”
3. Click “Exec” to run the model through multiple iterations. Click “Stop” to stop the graph.
4. To run the model step by step, click “Capture,” “Load,” “Init,” then “Step.”

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