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11. Natural Selection – Day 2

11. Natural Selection – Day 2. Essential Question: How does genetic diversity allow or prevent a species ability to adapt to its environment? Learning Target: Students will be able to identify and describe the four components of Natural Selection.

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11. Natural Selection – Day 2

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  1. 11. Natural Selection – Day 2 • Essential Question: How does genetic diversity allow or prevent a species ability to adapt to its environment? • Learning Target: Students will be able to identify and describe the four components of Natural Selection. • Learning Task: I can identify the four components of Natural Selection. I can create flashcards and Frayer Models to demonstrate my understanding of Evolution Vocabulary.

  2. Welcome! Warm Up Monday 4/21/13Week of 4/21 – 4/25 • What does it mean that “organisms over-produce”? • Give an example of organisms over-producing. • What was the best part of your spring break? • Record your answers on a separate sheet of paper to turn in at the end of class!

  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. More Evolution Vocab – 12 • New Evolution Vocab: Adaptation, Biological Evolution, Extinction, Species • Record these words & definitions in notebook, then create Frayer for the new 4 words (you should have 7 total on the page)

  5. Evolution Vocab 12 Darwin: a naturalist who proposed and provided scientific evidence that all species of life have evolved over time from common ancestors Natural Selection: survival of the fittest organisms that are the best adapted to their environment and will live long enough to reproduce and pass on those adaptations Theory: a explanation that ties together many hypothesis and observations Adaptation: a trait that increases the chances that an organism will survive and reproduce Biological evolution: the change over time of living organisms Extinction: The evolutionary termination of a species caused by the failure to reproduce and the death of all remaining members of the species Species: the most specific classification of living things

  6. Video: Evolution – Evolving Ideas Segment 4 and 6 NB 14 • Today we will watch another video clip from the PBS Series Evolution – Evolving Ideas • You will copy the questions for each section into your lab notebook page 14 before watching, and then answer the questions while you watch.

  7. Video: Evolution Segment 4 & 6 14 Segment 4:How does Evolution Really Work? • What is the factor that affects the evolution of a new species? • What are the 4 processes affecting natural selection? • Can individual organisms develop beneficial traits within their lifetime?

  8. Segment 4:How does Evolution Really Work? Full screen/youtube: http://www.youtube.com/watch?v=xkwRTIKXaxg Original PBS location: http://www.pbs.org/wgbh/evolution/library/11/2/e_s_4.html

  9. Segment 4:How does Evolution Really Work? • What is the factor that affects the evolution of a new species? • What are the 4 processes affecting natural selection? Natural Selection Genetic Variation, Over production of offspring, Struggle for existence, Differential survival and reproduction

  10. Segment 4:How does Evolution Really Work? 3. Can individual organisms develop beneficial traits within their lifetime? NO!

  11. 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)?

  12. 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

  13. Segment 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? Sicknesses in humans caused by microbes (viruses, bacteria, fungi) Tuberculosis (TB), caused by bacteria TB that does not respond to regular medication

  14. Segment 6:Why Does Evolution Matter Now? 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)? Not all of the bacteria are killed, some are resistant and pass this trait on to their offspring In our global community, microbes travel easily from place to place

  15. Homework • Natural Selection Reading on Elephants Due Tomorrow • Create Frayer Models for any 4 of your Evolution Vocab words Due: Thursday

  16. Exit Ticket • What are the 4 components of Natural Selection?

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