A. cookiIndividualDewlap Color MeanCalculationsMean:SD:SEM:1.Anolis cristatellusandA. cookiare both trunk-ground anoles that live on Puerto Rico.A.cristatelluslives in a shady, forest environment, whileA. cookilives in an open, sunnyenvironment. What is an adaptive explanation for why the dewlap of one species evolved to bebrighter and that of another species darker?2. From the bar graph generated in the virtual lab (see below), how do the dewlap colors of thetwo species compare?3.How would you determine whether the difference between the two populations is statisticallysignificant?4.If a species of anoles with dark dewlaps colonized a heavily forested island, predict what wouldhappen over time to the color of the dewlap. Using your knowledge of natural selection andgenetics, explain your prediction. Show
 Student Handout Virtual Lab Lizard Evolution Virtual Lab LIZARD EVOLUTION VIRTUAL LAB Directions: Begin in the Introduction Tab. Read the Introduction and watch the Welcome to the Lizard Evolution Lab. Answer the following questions as you finish each module of the virtual lab. Click on Module 1: Ecomorphs and follow the directions as you work through the information. 1.At the beginning of the virtual lab, you were asked to sort eight lizards into categories. What criteria did you initially use to make your groups? Did you revise your criteria later? Why? I based my criteria off of the legs. I chose the size of the legs because I think that each of the different anoles had evolved based on their habitat. I did not revise my criteria. 2. An adaptation is a structure or function that is common in a population because it enhances the ability to survive and reproduce in a particular environment. Provide one example and an explanation of one adaptation in the Anolis lizards. One adaptation is the short legs on the sheplani hispanola anolis lizard. I think this is because of the slim branches it was on. The shorter legs made it easier for the lizard to hold onto the slimmer branches. 3.Provide one evolutionary explanation for why lizards living in the same part of the habitat (i.e., grass) would have similar characteristics. Lizards in the same habitat would have similar characteristics because there are many ways to do something, however there is only one way that is the best for surviving. Basically, lizards in the same habitat have the characteristics that are most fit for survival, so most lizards in that habitat would exhibit those most fit characteristics. 4.What is an ecomorph? Provide one example from the virtual lab. Ecomorphs are species with similar body types and habitats. An example is how the sheplani Hispaniola and occultus Puerto Rico lizards both have short legs www.BioInteractive.org Page 1 of 7 How would you determine whether the difference between the two populations is statistically significant anoles?How would you determine whether the difference between the two populations is statistically significant? Examine the size of the error bars, also note if they overlap. If a species of anoles with dark dewlaps colonized a heavily forested island, predict what would happen over time to the color of the dewlap.
Why lizards living in the same habitat have similar characteristics?Basically, lizards in the same habitat have the characteristics that are most fit for survival, so most lizards in that habitat would exhibit those most fit characteristics.
What conclusion can you draw about the evolution of the Anolis lizards?What conclusion can you draw about the evolution of the Anolis lizards based on these figures? The lizards are more closely related to lizards on the same island than lizards with the same body type. They all share one common ancestor.
Did the lizard species evolve independently on each island or evolve once and then spread to each island?The DNA revealed that the lizards on each island tend to be more closely related to each other than to similar-looking lizards elsewhere. That means that generally the same types of lizards evolved independently on each island.
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Do you predict that lizards from the two populations would still mate and reproduce?
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