Griffith college Tri1 2023/1005 QBT (GnD)11 [WEEK12] Vertebrate and Human evolution Understand that the first chordates, from which vertebrates later evolved, arose in the Cambrian Explosion, ~ 500 MYA. 1) lancelet -> with notochord, tail, pharyngeal slits and hollow nerve cord 2) hag fish -> having head (ear, eyes, nasal opening and brain) BUT now jaws and vertebrate 3) lampreys -> earliest vertebrate, it has no jaws With jaws -> sharks and rays 4) tiktaalik -> fish and amphib.. 2023. 5. 28. [WEEK11] Evolution of Populations and Speciation Genetic diversity is dependent on population size; understand how the example of facial tumours in Tasmanian Devils illustrates this. When the population size is too small, it has less vairability in indiviuals gene, which means that it has less source to be natural selected. Large enough population is required for having a chance for more fitted individual existing. For example, tasmanian devil.. 2023. 5. 23. [WEEK10] How did life start on Earth? PPT How easy is it to make the molecules required for life? First life on Earth Eukaryote Evolution The Fossil Record Mass Extinctions SPQ 1. Darwin finches suggested that the diet differntiate the species. Depending on the finches diet, their beak shaped different. These different birds are seemed to evolved from a single common finch ancestor but their difference in niches diverged their speco.. 2023. 5. 13. [WEEK10] Charles Darwin and the theory of evolution Learning objective Describe why Lamarckian evolution does not occur Lamarck noted that evolution occurs by acquisition of aquired characteristic. He expected that the trait aquired during one’s life time would inherited to the offspring so the species evolute. However, acquired characteristic cannot be inherited Describe the role Alfred Wallace played in development of evolutionary theory, and w.. 2023. 5. 13. 이전 1 2 3 다음 반응형
