Evolution and natural selection

• what is the theory of evolution?

  • life began as simple organisms from which more complex organisms evolved
• what is natural selection?

  • organisms have limited resources and individuals have to compete to survive
  • organisms with the most suitable characteristics for environment would be most successful competitors and increase chance of survival
  • successful organisms increase chance of breeding and passing on their genes
  • more people of next generation have better alleles - improve survival
  • over next generations - characteristics increase survival - more common in population - better adaptation to survival - best features naturally selected and species more adapted to survival~