Section 2:  Evolution

Chapter 4 Section 2 Presentation
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Key Terms:

• natural selection​
• evolution
  
• adaptation
  
• artificial selection
  
• ​resistance
  

Main Ideas:

• The naturalist Charles Darwin used the term natural selection to describe the survival and reproduction of organisms with particular traits.
• Darwin proposed that natural selection is responsible for evolution--a change in the genetic characteristics of a population from one generation to the next.
  
• By selecting which domesticated animals and plants breed, humans cause evolution by artificial selection.
  
• We have unintentionally selected for pests that are resistant to pesticides and for bacteria that are resistant to antibiotics.