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Mechanisms of Evolution Web Quest Name:______________________ Hour:____ Date:___________ LMTC Website- Teacher Projects –Biology -‘Mechanisms for Evolution’ McGraw Hill Animation – answer the following questions after watching the animation. 1. Define evolution 2. Is evolution studied at the population level or level of the individual organism? (Circle your answer) 3. List 5 factors that change the proportion of genotypes in a population. 4. Define genetic drift. What two situations lead to genetic drift? 5. What is gene flow? 6. What do mutations provide to a population? 7. How does non-random mating impact a gene pool? 8. Define natural selection. Complete the table explaining Mechanisms for Evolution. *If they are similar do not repeat content; add other important info and/or examples. Mechanism McGraw Hill SAYS… Berkley SAYS… PBS SAYS… Populations consist of individuals Natural selection requires genetic Natural selection acts on the heritable Natural with different genetic make-ups who variation. Ex: Green Beetles are more variations of individuals and results in a Selection are more successful at leaving likely to be eaten. Brown beetles are population that is better adapted to its offspring. more common in the next generation. environment Mutation Migration Genetic Drift Gene Flow List 1 more common theme: Pearson – Mechanisms for Evolution 5 question quiz – Take the quiz, click ‘submit answers for grading’ – and record the correct answers for all questions. DO NOT email them to your teacher. 1. The evolution of populations due to chance is 2. If color is an inherited trait in beetles, and birds are more likely to eat brown beetles than green beetles, 3. In a population with brown and green alleles for color, genetic drift 4. Color is an inherited trait in beetles. If brown beetles move into a population from a nearby island, which of the following statements is correct? 5. Which of the following is an example of natural selection? NESCent – Examples of Evolution - Student Activity – This is designed to help you find examples of evolution in the popular media and your daily life. -Choose ONE of the topics from either ‘Applied Evolution’ OR ‘Examples of Evolution’– this is individual, not group. -Look for recent media coverage of the topic focusing on the role of evolutionary biology. Make sure to include the Bibliography information. Topic Chosen:_________________________________________________ How does evolution play a role in this issue? Does this example demonstrate natural selection? YES or NO If yes, what are the selective pressures? If no, what is the force driving evolution (Mechanism for Evolution)? What role do variation and heritability play in this example? How is this topic relevant in your life? Bibliography: