3 A2/A-level Biology resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter A2/A-level SubjectClear filter Biology Exam board AQA TopicClear filter Biological molecules, organic chemistry and biochemistry Nitrogen cycle Plants Resources Flashcards Multi-tool Revision Notes Nitrogen cycle A2/A-level, Biology Revision notes 3.0 / 5 Biology - Plant Reproduction A2/A-level, Biology 11 flashcards Transport of water in the xylem A2/A-level, Biology 5 flashcards Search again