Unit 1 Defences against pathogens, the human immune system and vaccination Unit 2 Rate of reaction Unit 3 Aerobic and anaerobic cellular respiration Unit 4 Forces make things change Unit 5 Biomass transfer, food security and biodiversity Unit 6 Using Earth's resources Unit 9 Hormones and human reproduction Unit 10 Groups of the periodic table Unit 11 Coordination and control: maintaining a constant internal environment Unit 12 Electromagnetism Unit 14 Atmosphere and changing climate Unit 15 Medicines and new treatments for disease Unit 16 Electromagnetic waves Unit 17 Variation and natural selection at the genetic level Unit 19 Classification in modern biology
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تبصرے
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Classification and reclassification: genetic evidence
Classification into kingdoms and domains: sub-cellular evidence
Electron microscopy, and the size and scale of cells: including standard form
Classifying organisms as eukaryotic or prokaryotic
Mutations and evolution in bacteria
Natural selection at the genetic level
Variation and genetic mutations
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