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Chapter 4

Chapter 4. Section 2 - Evolution. AIM and HW. AIM : How does evolution occur by natural selection? HW : 1) Complete Peppered Moths questions 2) QUIZ on FRIDAY 3) TEST on THURSDAY. DO NOW. In your EcoLog answer:

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Chapter 4

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  1. Chapter 4 Section 2 - Evolution

  2. AIM and HW • AIM: How does evolution occur by natural selection? • HW: 1) Complete Peppered Moths questions 2) QUIZ on FRIDAY 3) TEST on THURSDAY

  3. DO NOW • In your EcoLog answer: • What do you think…what does natural selection mean?

  4. AIM and HW • AIM: How do organisms become so well suited to their environment? • HW: 1) Finish article questions 2) TEST on THURSDAY – start studying!

  5. DO NOW • In your EcoLog answer the following questions: • Who is Charles Darwin? • How is he related to evolution?

  6. Darwin and Evolution • Darwin • natural selection • the unequal survival and reproduction that results from the presence or absence of particular traits • evolution • a change in the genetic characteristics of a population from one generation to the next

  7. Evolution by Natural Selection • 1) Overproduction = Organisms produce more offspring than can survive

  8. Evolution by Natural Selection • 2) The environment is hostile and contains limited resources

  9. Evolution by Natural Selection • 3) Organisms differ in the traits they have

  10. Evolution by Natural Selection • 4) Some inherited traits provide organisms with an advantage • 5) Each generation contains proportionately more organisms with advantageous traits

  11. AIM and HW • AIM: Why does evolution matter now? • HW: 1) TEST TOMORROW (Chapter 4)

  12. DO NOW • In your EcoLog, discuss the events of the video

  13. AIM and HW • AIM: How does natural selection impact future generations? • HW: 1) TEST TOMORROW (Chapter 4 – Sections 1 & 2)

  14. DO NOW In your EcoLog, compare/contrast survival of the fittest and natural selection

  15. Evolution by Artificial Selection • Artificial Selection • the selective breeding of organisms by humans for specific characteristics • EX: fruits, grain, and vegetables we eat dog breeds

  16. Evolution by Resistance

  17. Evolution by Resistance • Pesticide Resistance • How do pests develop a resistance to pesticides?

  18. CLOSURE • Explain what an adaptation is, and provide three examples • Explain the process of evolution by natural selection • Describe one way in which artificial selection can benefit humans • Explain how a population of insects could become resistant to a pesticide

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