Analyzing Charles Darwin's Theory Of Natural Selection

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Name:_________________________________________________________________ Period:______ Natural Selection Bunny Simulation http://phet.colorado.edu/en/simulation/natural‐selection Adapted from the HHS Biology Team Feb, 2012. Background Information: In the mid 1800’s a scientist named Charles Darwin discovered and developed a mechanism for evolution that he called natural selection. Natural selection simply stated that within any population with variation there would be a struggle for existence that would ultimately lead to the survival of the fittest. Darwin then went on to say that those traits that were the most fit would be passed on to the next generation more frequently. This continual selection for certain traits and against others over…show more content…
Follow the directions below to collect the required data then use that data to answer the discussion questions that follow. Experiment 1: In this experiment you will be examining the effect of a mutation that changes the color of the organism and alters how it avoids predators. Before you start: Read through the experiment. Then in the space below hypothesize how this change in DNA will affect the evolution of this population over the next 10 generations. (Remember… if, then, because) _____________________________________________________________________________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 1. Log onto your computer and go to the website listed on the first page. Once this page loads click on the “run now” button under the picture of the simulation. 2. Take a few minutes to familiarize yourself with how the simulation software works. Be sure to notice the following: The population graph under the environment. This is where you will get the number of each type of rabbit. You can zoom in or out to get a more accurate reading of population size. The generation bar, play, and pause buttons. These give you a time before each breeding period. The pause button allows you to stop the simulation so you can read the graph and take your data. 3. When you are ready to start your first experiment make sure the environment is set to “equator” then click on the “add a friend” button in the lower left hand corner of the environment. This will start the simulation. Watch the generation bar and let it run twice, then hit pause. Record the data from the graph for generation two in data table

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