Activity 1.2 Deep History

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by David Barker1 view·Updated Mar 19, 2022
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  1. this is from bio 3 45. This is Dave Parker about the history of earth
  2. information of earth.
  3. It was approximately 4.5 G. Y. A.
  4. Um According there are many theories about how the earth was formed.
  5. But for the most popular theory
  6. a distant star collapsed, creating a supernova explosion
  7. which disrupted the dust cloud and cause it to pull together
  8. for me a spinning disk of gas and dust
  9. notices solar. So solar nebula
  10. the start of life. This is a picture of
  11. the scientists recreating the beginning of life
  12. um becoming
  13. a multicellular.
  14. Um
  15. So the start of life is approximately
  16. 3.8 G. Y. A.
  17. Um And we know that according to the oldest rocks with fossil evidence
  18. from basic microbes.
  19. Um And this is how life originally had.
  20. Yeah
  21. the origin of you create new carry outs approximately 3.5 G. Y. A.
  22. Basically it's due to indo symbiotic theory
  23. um basically um
  24. you carry out the regime from an ancestral pro cario
  25. which undergo membrane proliferation,
  26. creating compartmentalization of cellular function
  27. and establishment of endosymbiont endosymbiont
  28. IQ synthesis with a aerobic precarious
  29. origins of multicellular charity.
  30. Multicellular is when
  31. it's basically the universal organism coordinates behaviors to
  32. the evolution of precursor to a multi similarity from
  33. big. Pretty much from a cyanobacteria like organism.
  34. Ah
  35. So basically capturing
  36. bacteria
  37. creating a multicellular charity to it
  38. Dinosaurs were the origin of dinosaurs approximately 230 M. Y.
  39. a dinosaurs actually have been very auction rich atmosphere at that time
  40. um
  41. That
  42. the dinosaurs are from the Triassic period of the Mesozoic area.
  43. They were members of a subclass of reptiles called
  44. article source,
  45. which includes birds and reptiles,
  46. the extinction of dinosaurs.
  47. They have several theories. It's basically during the cretaceous period.
  48. One of the three is about an asteroid which crashed annihilating all the
  49. and the dinosaurs.
  50. Others believe it's by climate and geological
  51. changes that interrupted their their food supply
  52. origin of homo sapiens basically.
  53. There's from the latest records show that we evolved from africa
  54. and the
  55. police still seen period
  56. we involved permit
  57. pretty much from
  58. homo erectus.
  59. Uh huh.
  60. And there is showing again the line of
  61. the lineage of how it became
  62. homo sapiens
  63. And there was approximately 200 Ky 80
  64. our present time has.
  65. This is a pretty sure our present time Zero White a where they said the comments
  66. have separated homo sapiens that migrated and that's
  67. how we got into the different confidence.
  68. Um
  69. Current time or current period
  70. of individual comments
  71. are auction atmosphere.
  72. Um
  73. And this is our auction which atmosphere they believe
  74. it came from
  75. the volcanoes of the sulfur which later had dwindled
  76. down also in the oceans with the two.
  77. Um pretty much showing there are actually two
  78. reaching 21% and with our ceo two levels