GCSE Combined Biology Topic based questions

 Unit 4.1 Cell biology (paper 1 and 2)

Unit 4.2 Organisation (paper 1)

Unit 4.3 Infection and response (paper 1)

Unit 4.4 Bioenergetics (paper 1)

Unit 4.5 Homeostasis and response (paper 2)

 Unit 4.6 Inheritance, variation and evolution (paper 2)

Unit 4.7 Ecology (paper 2)