|Answers to end-of-chapter questions|
|Synoptic questions mark scheme|
|Chemicals of life (Chapters 1 - 3):||Mark Scheme|
|Cells (Chapters 4 - 7)||Mark Scheme|
|Exchange and transport (Chapters 8 - 11):||Mark Scheme|
|Evolution, classification and biodiversity(Chapters 12 - 13)||Mark Scheme|
|Health and disease (Chapters 14 - 16)||Mark Scheme|
|Energy and control (Chapters 17 - 20):||Mark Scheme|
|Genetics and gene technology (Chapters 21 - 22):||Mark Scheme|
|Ecosystems (Chapters 23 - 25)||Mark Scheme|
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