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Name______________________________________________________ Period _____ Natural Selection and Peppered Moths Go to Google and type in peppered moth interactive and click on the techapps address and choose the shockwave version. Part I.) Peppered Moth Life Cycle 1.) 2.) 3.) 4.) 5.) Where do peppered moths live? ________________________________________________________ Why are peppered moths called ‘peppered’? ______________________________________________ What are common predators of peppered moths? __________________________________________ How do peppered moths avoid these predators? ___________________________________________ How does the coloration of the peppered moth help it avoid predators? ________________________ Part II.) Pollution and peppered moths 6.) Why was Edleston’s peppered moth unusual? ______________________________________________ 7.) How did the peppered moth population populations change over the next 50 years? _______________ ____________________________________________________________________________________ 8.) How did the peppered moth’s environment (trees) change during the industrial revolution? _________ ____________________________________________________________________________________ 9.) Scientists became interested in what was causing the dark colored moths to appear; what were two early ideas on what was causing the change in the number of dark peppered moths? ______________ ___________________________________________________________________________________ ____________________________________________________________________________________ 10.) What controls the phenotype for color in peppered moths? ___________________________________ 11.) What caused the first dark colored peppered moth? _________________________________________ 12.) Why were the number of dark colored peppered moths increasing in populations that were located next to large cities?____________________________________________________________________ ____________________________________________________________________________________ 13.) Explain natural selection as described by Charles Darwin? ___________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 14.) How did J.W. Tutt explain the change in the peppered moth populations? _______________________ ____________________________________________________________________________________ 15.) Were other populations of moths effected during the industrial revolution? ______________________ 16.) How is the peppered moth population changing now? _______________________________________ ____________________________________________________________________________________ Part III.) Kettlewell’s Experiments 17.) What was Kettlewell trying to determine with his experiments? _______________________________ ____________________________________________________________________________________ 18.) Did the mapped populations of peppered moths following Kettlewell’s predictions? ________Explain. ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 19.) Describe how Kettlewell studied bird predation on peppered moth populations?__________________ ____________________________________________________________________________________ 20.) What did Kettlewell’s experiments show about bird predation on moth populations? ______________ ____________________________________________________________________________________ ____________________________________________________________________________________ Part IV.) Bird’s Eye View 21.) Run the simulation for the light forest and fill in the data table. Moth Coloration Starting Moth Population (%) Light phenotype 50 Dark phenotype 50 Ending Moth Population (%) 22.) Run the simulation for the dark forest and fill in the data table. Moth Coloration Starting Moth Population (%) Light phenotype 50 Dark phenotype 50 Ending Moth Population (%) 23.) Describe how peppered moths showed the process of natural selection during the industrial revolution. ____________________________________________________________________________________ ____________________________________________________________________________________ 24.) Explain why variation within a population is needed for natural selection to occur. ____________________________________________________________________________________ ____________________________________________________________________________________ 25.) What are the two main causes of variation within a population of species?
