Step 12: Determine the sizes of the Flocks in the Third Generation
Total Pieces of Food Eaten
Food Percentage
Flock X Flock Y Flock z
32 180 88
11 ✓ % 60 ✓ % 29
3
18
9 ✓
Simulated Number of Birds in Flock for 3rd Generation**
* Divide each flocks total pieces of food by 300, the total number of pieces of food eaten.
** Multiply the food percentage for each flock by the total number of birds (30)
COMPLETE
With only two foods available, natural selection has favored Flock Yvwhich has grown the most
in the first three generations. Meanwhile, Flock Xv has declined the most because its beak was
the least successful phenotype for the food available.
COMPLETE
Intro
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