Natural selection

• mutation

  Variation

  Selective advantage

  Survival

  Reproduction

  Gene passed on

  Repeated over many generations

  Number with gene increases

  Natural Selection
• Mutation in a gene causes organism to be different -> variation in species -> some individuals a selective advantage-> mutated organisms survive and reproduce because they can outcompete non-mutated organisms-> passed onto next generation Over and over-> number of mutated individuals increases -> natural selection
• Natural selection brings around evolutionary changes
• Heritable = characteristics that you get from your parents
• Natural selection defenition?

  theory proposed by Charles Darwin
• Fossils = hard remains of animals that once lived