Charles darwin & Natural Selection
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Charles darwin & Natural Selection

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Charles darwin & Natural Selection Charles darwin & Natural Selection Presentation Transcript

  • Charles Darwin & natural selection
    Ji Won, Natasha, Amna
  • Key Terms
    • Mutation: creation of altered DNA
    • Gene flow: gene movement from one population to another View slide
    • Genetic variation is affected by gene flow and it allows natural selection to occur View slide
    • Charles Darwin
    • Natural selection
    • Survival of the fittest
    • Family Tree
    • “Descent with modification”
  • Father of Evolutionary Biology
    Charles Darwin
  • Darwin as a Child
    Naughty
    Clumsy
    Athletic
    Gullible
    Lazy
    Slow learner
    Shy
  • Darwin’s Love for Natural Science
    Was taught the classics, ancient history, and Greek at Revd. Samuel Butler's school and found it to be extremely boring
    He developed his interest for natural science in activities outside of school
    Hiking
    Book Reading
    Chemistry
  • Darwin and Medicine
    Darwin was admitted to Edinburgh University, in Scotland
    Many members of his family including his dad were in the medical field
    Assisted at his dad’s medical practice
    Again he found most of his school studies a bore
    Scared of blood
  • A Further Interest in Science
    Darwin participated in many things outside of school that sparked his interest in natural science
    Stuffing Animals
    Natural History Book
    Natural History Museum
    Plinian Society
    Robert Grant
  • At Cambridge University
    To enter the popular profession of clergy, Darwin attended Cambridge University, at Christ's College.
    Was again uninterested in his studies and spent time playing cards with friends, partying and shooting birds.
    During this time various things added to his interest in natural science
    Insect Collecting
    Prof. Revd. John Henslow
    Two Great Books
    Professor Adam Sedgwick
  • Religion vs. Science
    Was a religious orthodox that received proper religious schooling
    On the Beagle Voyage he witnessed slavery and the wretched state the natives of Tierra del Fuego lived in
    Darwin began to research the origin of species and saw that the species adapted to their environment of time
    While coming up with the laws of natural selection, Darwin became less religious
    In contrast with the churches views believed that God initiated the process but did not create each species already fit for their environment
  • The Theory of Natural Selection
    Darwin’s several observations on nature: variation, heritance, competition, adaptation.
    Natural Selection is a very simple concept!
    Individuals with favored traits -> higher chance of reproduction -> more offspring with the traits
    Thus, the certain traits will become popular in the population over generations.
    Background
    Inference
  • The Theory of Natural Selection
    Survival of the fittest
  • Family Tree Evolution
    • Darwin’s another observation on bird species in Galápagos Islands in 1835
    • Common ancestor from the mainland of South America
    • “Descent with modification”
  • Keys in Natural Selection
    Natural Selection is…
    • The evolution of the population, not the evolution of the individuals
    • Dealing with heritable traits, not acquired characteristics
    • Based on the environment; being favored in one place does not mean it is also favored in a different place
  • Cain, M. L., Campbell, N. A., Reece, J. B., Urry, L. A., & Wasserman, S. A. (2007). BIOLOGY: A P* Edition (8 Har/Cdr ed.). San Francisco: Pearson.
    Genetic variation. (n.d.). Understanding Evolution. Retrieved May 26, 2010, from http://evolution.berkeley.edu/evolibrary
    Evolution 101: Gene Flow. (n.d.). Understanding Evolution. Retrieved May 26, 2010, from http://evolution.berkeley.edu/evosite
    Leff, D. (2000, February 12). Who was Darwin. AboutDarwin.com. Retrieved May 26, 2010, from http://www.aboutdarwin.com/darwin/WhoWas.html
    References