Round / # of white moths eaten / Total white moths eaten / # of black moths eaten / Total black moths eaten / # of white moths still alive after reproduction / # of black moths still alive after reproduction / Additional notes of importance
1 / 13 / 13 / 8 / 8 / 396 / 395 / One prey eaten
2 / 12 / 25 / 10 / 18 / 340 / 466 / One prey eaten
3 / 10 / 35 / 9 / 27 / 385 / 369 / One prey eaten
4 / 27 / 62 / 15 / 42 / 307 / 366 / Two prey were eaten
5 / 7 / 69 / 18 / 60 / 366 / 359 / One prey eaten
6 / 39 / 108 / 55 / 115 / 324 / 312 / Five prey were eaten
7 / 4 / 112 / 16 / 131 / 335 / 300 / One prey eaten
8 / 20 / 132 / 19 / 150 / 310 / 305 / Two prey were eaten
9 / 56 / 188 / 47 / 197 / 259 / 249 / Five prey were eaten
10 / 20 / 208 / 19 / 206 / 247 / 259 / Two prey were eaten
11 / 10 / 218 / 19 / 225 / 235 / 269 / One prey eaten
12 New environment with a white background / 46 / 264 / 73 / 298 / 223 / 188 / five prey were eaten
13 / 29 / 293 / 48 / 346 / 188 / 164 / Three prey were eaten
14 / 0 / 293 / 0 / 346 / 207 / 192 / No predation

graph #1 Graph #2

Questions:

1.  What happened to the total number of moths over 16 generations? Explain.

2.  What significant event happened just before the 12 generation? (use the data sheet)

3.  Studying the first two graphs, what would have eventually happened to the population of moths if birds were to continue being predators on them? Explain.

4.  Looking at graph #2, what might be a reason why so many more black moths were eaten after 14 rounds? Explain.

5.  Looking at graph #1, what might be a reason why more white moths were alive after 16 rounds? Explain.

6.  Using the last bar graph, what type of moths were eaten more?

7.  How was this different than the number of moths that were eaten by looking at the graph titled “Total number of moths eaten in the dark environment? Explain.

8.  Overall, does the color of the environment affect the types of moths that were being eaten? Explain.

9.  How might the genotypes of the moths impact the color of the offspring being born back into the environment? Explain.