The dependent variable of the lab is the frequency of each type-size and shape-of beaks. Materials: 100 sunflower seeds 100 raisins 100 grains of rice 2 forks 2 spoons 2 knives Plastic cup Procedure: 1 . Gather around the edge of the table cloth, mixing the three groups fairly evenly. 2. Pick up food pieces only with your tool, using the pair of utensils in one hand, simulating the action of a beak. 3. Pick up one piece of food at a time, and put it in your cup (“stomach”) before picking another piece of food.
4. Keep your DOD off the table cloth and pick up food only within your reach. 5.Start only when the teacher says “Go” and finish when all food has been “eaten. ” Data Environment with Equal Amounts of Insects, Seeds, and Fruit Second Generation Flock X Flock Y Flock Z Insects Eaten 35 32 33 Seeds Eaten 46 20 Fruit Eaten 78 15 7 Total 147 93 60 Percentage 31% Simulated Number of Birds in Flock for 3rd Generation 9 6 Data?Changed Environment with Equal Amounts of Insects and Seeds but No Fruit. First Generation 30 27 57 153 90 Percent 19% 51% 30% in Flock for 2nd Generation 00 17 80 180 88 11% 29% 3 18 Analysis: Based on the data in the first table flock X consumes mostly fruit.
When fruit was taken away there was a decrease in the number of birds that flock X contained. Flock Y consumes mostly seeds. There was no effect on flock Y when fruit was removed. Due to the fact that flock Z eats mostly insects, the flock was not affected by the removal of fruit. Conclusion: In this lab I learned about how favorable traits are important when nature selects what organism will survive and pass down its genes for the next generation to inherit, I also learned that most species learn to adapt to their environments so that they can have a favorable trait to be able to survive in their environment.I was able to observe that in the wilderness you need that favorable trait so that you are able to reproduce and pass down your genotypes for the next generation of you species to inherit.
I gained useful skills such as how to determine the next generation’s population by analyzing results from experiments I conducted relating to the bird populations