2 AS Biology resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter AS SubjectClear filter Biology Exam board OCR TopicClear filter Xylem and Phloem Resources Flashcards Multi-tool Revision Cards Xylem & Phloem AS, Biology 4 revision cards Xylem and phloem AS, Biology 15 flashcards Search again