Topics for B7 ideas in context list OCR 21st century science GCSE 2011

the best topics to revise for the exam if you need any more help with one of the topics please feel free to comment  - hope it helps best of luck !

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Top Topics !

best to revise form B2 ( keeping healthy)- 

  • how clinical tests ( epidemiological studies) are conducted- (advantages and disavantages of each type)
  • Sampling 
  • peer review
  • reliability and accuracy 
  • correlations

From B5 Growth and development

  • mitosis
  • how protiens are made
  • structure of DNA
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Very helpful! Thanks man :)

Michelle Horan

Thanks soooooooo much :)



Chloe Thorn

that's ok guys !

Lucy Sumner



Lifesaver!!!!!!! Love you loads!

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