2017 · Paper 3 · Question 7 · 50 marks
SaveThe importance of nitrogen-containing substances in biological systems.
The importance of diffusion in organisms.
ExamRizzAQA BiologyBiologyExamRizzAQA BiologyBiology2017 · Paper 3 · Question 7 · 50 marks
SaveThe importance of nitrogen-containing substances in biological systems.
The importance of diffusion in organisms.