🧬 📝 2

• development of the theory of evolution by natural selection

  Darwin and Wallace working independently
• classifying organisms by phylogenetics

  look at DNA base sequences
• how does this fossil record provide evidence for evolution

  shows that many small changes can result in a large charge in organisms over time
• similarity between selective breeding and natural selection

  only some organisms reproduce
• natural classification

  classifying organisms using many of their common characteristics
• aseptic techniques

  • Water is added from (each) lake to a (separate) Petri dish using a (sterile) pipette
  • Filter paper/antibiotic disc is placed in (the centre of) each dish with the (sterile) forceps
  • The Petri dishes are incubated
  • The inhibition zone/clear area/area with no bacteria growth around the discs is measured (with the ruler)=