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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 Which is the best explanation for why the same types of lizards evolved on 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.
Why are lizards on the same island generally more closely related to one another than to similarWhy are lizards on the same island generally more closely related to one another than to similar-looking lizards from other islands? (1) They are generally more closely related because for each individual ectomorph on an island, they might only had to evolved once or many times therefore giving the new generation a ...
Why have lizard evolved to occupy different parts of the habitats?Jonathan Losos said, why have different lizard species evolved to occupy different parts of the habitats? Answer: To minimize competition for food and other resources between different species.
How did lizard species with similar body types evolve on all the islands?The DNA evidence suggests that species from the same island are more closely related than are species from the same ecomorph group. This finding supports the hypothesis that most of the lizards on each island evolved independently, in a process of convergent evolution, although there are exceptions.
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What is one evolutionary explanation for why lizards living in the same part of the habitat would have similar characteristics?
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