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14. Natural Selection – Day 4

14. Natural Selection – Day 4. Essential Question: How does genetic diversity allow or prevent a species ability to adapt to its environment? Learning Target: I can identify and describe the four components of Natural Selection.

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14. Natural Selection – Day 4

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  1. 14. Natural Selection – Day 4 • Essential Question: How does genetic diversity allow or prevent a species ability to adapt to its environment? • Learning Target: I can identify and describe the four components of Natural Selection. • Learning Task: I will identify the 4 components of Natural Selection. I can play a game to illustrate the 4 components of Natural Selection.

  2. Welcome! Warm Up Thursday 4/24/14Week of 4/21– 4/25 • What is missing from the phrase “survival of the fittest?” It’s not enough to simply survive, the best adapted organisms must survive and reproduce to pass on their better-adapted DNA to the next generation!

  3. 4th Quarter Table of Contents 1 Title Assignment # Video: Evolution Questions Segment 1& 3 11 Evolution Vocab (7 Words) 12 Evolution Notes: The Theory of Natural Selection13 Video: Evolution Questions Segment 4&6 14 The Bean Bug Game 15

  4. Open Notebook to Page 13Evolution Notes: The Theory of Natural Selection • Talk to your Table Partner about the missing questions in relationship to the Bean Game you played

  5. I. Organisms face a struggle to survive What does struggle to survive mean? What was the struggle that the “bean bugs” faced in the game? Life is a challenge & you must overcome those challenges to survive Not to get eaten

  6. II. Organisms tend to over produce • What is over production? • Why do animals over produce? Leaving more than enough offspring to replace yourself -Some offspring will not live to reproduce -The more offspring you have, the more likely some will survive

  7. III. Organisms show variation among offspring • What were the variations that we saw in the bean game? • What is variation? • What causes variation? Color and Flavor Genetic differences in a population of living things Mutations in DNA or Reproduction

  8. IV. Organisms with the variation that is best adapted to their environment survive & reproduce • Give an example of the best variation from the bean game? • Why was it the best? ANSWER: ANSWER:

  9. Review Bean GameCopy on to NB 15

  10. The Bean Bug Game • 1.What were the variations in our population of “bean bugs”?   • 2. In order to survive, the “bean bugs” had to overcome a struggle. What was that struggle? • 3. Did any of your bug species go extinct? Why or why not? • 4. Which of your species ended up with the largest population? What adaptation allowed this species of bug to survive the best? • 5.If you continued to do this experiment for 5 more rounds, how do you think your populations would have changed? Why? • 6. Apply what you learned in this lab to real bugs. How do you think natural selection would affect a species of bug? Which bugs in a population would die out, and which genes would be selected to carry on to the next generation?

  11. Natural Selection Quiz http:/goo.gl/tkY96

  12. Video: Evolution Segment 4 & 6 14Segment 6:Why Does Evolution Matter Now? 1. What is an example of evolution occurring today? 2. What is the leading infectious disease among adults? What causes it? 3. What is multi-drug resistant tuberculosis? 4. What happens if a patient does not take all of their medication? 5. Why is a tuberculosis epidemic in Russia dangerous to us (why should we care)?

  13. Segment 6:Why Does Evolution Matter Now? Full screen/youtube: http://www.youtube.com/watch?v=6jBD8xfbf4Y Original PBS location: http://www.pbs.org/wgbh/evolution/library/11/2/e_s_6.html

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