Earth because Explain why scientists cannot many early forms be certain how life began on of life were Earth. Consider theories of how life on so few Explain how fossils provide Earth began. traces remain. evidence for evolution. What traces there were have been destroyed by geological activity. Fossils show how much, or how little, organisms have changed over time. 4.6.3.4 Resistant bacteria. Explain how bacteria can 4.6.3.5 Explain what we should do to Bacteria can become resistant to antibiotics. slow down the rate of evolve rapidly 4.6.3.7 Explain how antibiotic development of resistant because they resistance has impacted on strains of bacteria. reproduce at a cleaning practices in Britain’s fast rate. Describe the impact of hospitals. antibiotic resistance. Mutations produce Interpret data about antibiotic new strains. resistance. Resistant strains are not killed by Role play: life without antibiotics, so they antibiotics. survive and reproduce.
4.6.3.4 4.6.3.5 4.6.3.7 Earth because many early forms of life were so few traces remain. What traces there were have been destroyed by geological activity. Fossils show how much, or how little, organisms have changed over time. Resistant bacteria. Bacteria can evolve rapidly because they reproduce at a fast rate. Mutations produce new strains. Resistant strains are not killed by antibiotics, so they survive and reproduce. Explain why scientists cannot be certain how life began on Earth. Explain how fossils provide evidence for evolution. Explain what we should do to slow down the rate of development of resistant strains of bacteria. Describe the impact of antibiotic resistance. Consider theories of how life on Earth began. Explain how bacteria can become resistant to antibiotics. Explain how antibiotic resistance has impacted on cleaning practices in Britain’s hospitals. Interpret data about antibiotic resistance. Role play: life without antibiotics.