Theory of Evolution

• Theory of Evolution

  1. Variation in a population
  2. Survival of the fittest
  3. Reproduction
  4. Over time, the beneficial allele is passed on through generations
• Evolution is the change in inherited characteristics of a population over time, through the process of natural selection
• Evidence for Evolution?

  Fossils

  • The deeper the rock they are found in, the older the organism
  • By arranging fossils in chronological order, gradual changes in organisms can be observed

  Bacteria

  • Bacteria may randomly mutate, leading to a beneficial allele being passed on, meaning antibiotics may go ineffective