Examine the result. Notice how the yeast population grows as the food supply dwindles. Finally, the food runs out and the population collapses. The sad ruins are put in a keg and sold to fraternities. Save your spreadsheet.
Ant colonies have a weird reproductive method.
The only individual that reproduces is the queen, who does nothing put pump out eggs all day. Lets say that a queen ant produces a fixed number of eggs per day. For our simulation let her produce 100 eggs per day. Worker ants are not so lucky. They die after two generations.