9700/121 mark
May/June 2025 · Question 35
9.1 The gas exchange system
9.1 The gas exchange system

9700/121 mark
May/June 2025 · Question 36
9.1 The gas exchange system
9.1 The gas exchange system

9700/2212 marks
May/June 2025 · Question 4
10.1 Infectious diseases, 9.1 The gas exchange system, 11.1 The immune system
10.1 Infectious diseases9.1 The gas exchange system11.1 The immune system
