In this part of the lab you will analyze data to find out how the same initial squirrel population changes after a highly toxic species of mushroom producing fungus begins to grow in the forest where the squirrels live Procedure and Data 8 points 1 Under Mutation Rate select High 2 Under Environmental Change select Toxin 3 Select Start 4 To perform a trial click the forward arrow under the timeline to observe changes that occur in the species every 10 000 years Read about the new traits that appear in the population because of mutations Observe any changes reflected in the pie chart data table or illustration Note The squirrel in the illustration represents the most common phenotype 5 Click the forward arrow until the simulation ends either at year 100 000 or sooner if there is an extinction 6 In Data Table 3 record the letter of the most common enzyme in the final population its frequency percentage and the number of individuals with this trait and the total final population for this trial Observe when the final mode trait appeared as a mutation and observe the other digestive enzymes that are present at year 100 000 7 After you have collected your data select Reset Select the same mutation rate and the same environmental change and select Start to begin a new trial 8 Repeat Steps 4 through 7 until you have collected data for 20 trials 8 points Data Table 3 Changes in Digestive Enzyme Frequencies Mutation rate High Environmental change Toxin Trial 1 2 3 4 5 6 7 B 9 10 11 12 Mode enzyme at year 100 000 Frequency of mode trait at year 100 000 Number of individuals with mode trait at year 100 000 Total population at year 100 000