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CATALYST

CATALYST. TIME REMAINING: 7:00 MINUTES. The CATALYST is to be done independently and silently. Answer the following questions in your notebook:.

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CATALYST

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  1. CATALYST TIME REMAINING: 7:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  2. CATALYST TIME REMAINING: 6:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  3. CATALYST TIME REMAINING: 5:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  4. CATALYST TIME REMAINING: 4:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  5. CATALYST TIME REMAINING: 3:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  6. CATALYST TIME REMAINING: 2:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  7. CATALYST TIME REMAINING: 1:00 MINUTES The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between the organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  8. CATALYST Silently and on your own, complete the task below When you are finished, put your pencil down and look up. Remain silent to allow others to finish. Answer the following questions: • Which of the following is a source of variability? • mitosis • mutation • genetic drift • none of the above • Which types of organisms did NOT exist on Earth 4 billion years ago? • aerobic prokaryotes • anaerobic prokaryotes • aerobic eukaryotes • anaerobic eukaryotes TIME REMAINING: 2:00 MINUTES

  9. CATALYST Silently and on your own, complete the task below When you are finished, put your pencil down and look up. Remain silent to allow others to finish. Answer the following questions: • Which of the following is a source of variability? • mitosis • mutation • genetic drift • none of the above • Which types of organisms did NOT exist on Earth 4 billion years ago? • aerobic prokaryotes • anaerobic prokaryotes • aerobic eukaryotes • anaerobic eukaryotes TIME REMAINING: 1:00 MINUTES

  10. CATALYST The CATALYST is to be done independently and silently. Answer the following questions in your notebook: 1. Describe the main differences between organisms that existed 2-4 billion years ago and the organisms that exist today. Remember to use the appropriate vocabulary (abiogenesis, biogenesis, prokaryotic, etc.)

  11. CATALYST • Silently and on your own, complete the task below • When you are finished, put your pencil down and look up. Remain silent to allow others to finish. • Answer the following questions: • Which of the following is a source of variability? • mitosis • mutation • genetic drift • none of the above • Which types of organisms did NOT exist on Earth 4 billion years ago? • aerobic prokaryotes • anaerobic prokaryotes • aerobic eukaryotes • anaerobic eukaryotes

  12. Darwinand Evolution

  13. How is there so much diversity?

  14. Charles Darwin made observations while he was traveling on a ship called the Beaglein the Galapagos Islands.

  15. Galapagos Islands

  16. Darwin saw variation (difference) within species on the different Islands

  17. Lonesome George • Last known individual of one of 11 subspecies; three have already died out • “Rarest creature” in the world • 60-90 years of age

  18. Darwin’s Finches Different finches lived in different environments

  19. Darwin’s Finches The finches had different beaks

  20. What did his observations mean?

  21. Darwin’s Finches If you were a finch who had to eat BIG seeds, which beak would be best?

  22. Darwin’s Finches If you were a finch who had to eat SMALL seeds, which beak would be best?

  23. Darwin’s Finches Finches beaks matched their environment

  24. Darwin used his observations to develop the theory of evolution

  25. EVOLUTION:change over time

  26. What makes you different from a chimpanzee?

  27. Evolution of Intelligence? • Research by Matsuzawa et al. • Ayumu and short-term memory • Ayumu averages 80% accuracy with 9-digit strings • Humans average 40% with 5-digit strings Try it yourself: http://games.lumosity.com/chimp.html

  28. What is Intelligence? • Behavioral flexibility • Insight and problem solving • Calculation • Memory • Social awareness and skill • Language • Culture and learning

  29. In order for evolution to happen, you need…. V S I T Variation Selection Inheritance Time

  30. Means… Stands for… Variation S I T Difference between individuals

  31. Means… Stands for… Individuals with “good” traits will survive and reproduce more V Selection I T

  32. Means… Stands for… V S Inheritance T Genes are passed from parent to child

  33. Means… Stands for… V S I Time MANY generations

  34. Think: What part of VSIT is this?

  35. many generations

  36. differences between individuals

  37. individuals with good traits survive longer and reproduce more

  38. genes are passed from parent to child

  39. 5 thousand years

  40. A child gets his parents genes for brown eyes

  41. different kinds of beaks

  42. A butterfly who can camouflage to its environment survives longer

  43. Selection

  44. Selection Without looking at your notes, what 4 things do you need for evolution to happen?

  45. S = Selection Natural selection: organisms best suited to their environment as a result of good genes survive and reproduce

  46. Selection Natural selection = selection by nature Natural selection = nature (NOT ahuman) decides who survives.

  47. Think: Natural selection or not? A dog breeder chooses to mate only big dogs:

  48. Think: Natural selection or not? Birds with a big beak are more likely to survive and reproduce on a certain island:

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