GCSE Combined Science Biology revision for Edexcel Higher tier: free notes across 9 topics, each split into subtopics and lessons.
9 topics and 164 lessons for GCSE Edexcel Higher Combined Science Biology. Each topic lists its subtopics so you can go straight to the part you need.
9
Topics
164
Lessons
Revise Right Mocks '26
Edexcel GCSE Combined Science Biology mock draft, 26–31 Oct. Draft coverage: Combined Science Biology Paper 1 (Higher tier). Reviewed for an original-practice sitting; check student availability before registering. Marking and results will follow later, after separate approval. Eligible new accounts receive a five-day Pro trial when signup email verification completes. Previous trials keep their original expiry. After expiry, new papers need Pro unless you have an explicitly confirmed free sitting offer for this event. That offer adds no Pro time or AI learning. Saved attempts and released results remain readable. No card or automatic charge.
Every topic in this course, with the subtopics inside each one.
Topics and what they cover
Topic 1: Key concepts in biology: 22 lessons: Cell structure, Principles of organisation, Animal tissues, organs and organ systems, Transport in cells, Biological molecules and food tests
Topic 4: Natural selection and genetic modification: 19 lessons: Variation and evolution, The development of understanding of genetics and evolution, Classification of living organisms, Additional Edexcel Topic 4 anchors
Topic 9: Ecosystems and material cycles: 27 lessons: Adaptations, interdependence and competition, Organisation of an ecosystem, Biodiversity and the effect of human interaction on ecosystems, Additional ecosystem anchors
Other courses and past papers
Not your exam board or tier? The Combined Science Biology page lists every course we cover.
How do I know GCSE Edexcel Higher Combined Science Biology is my course?
Check the level, exam board and tier with your teacher, or look at the front of a past paper you have been given. Content differs between boards, so it is worth getting this right first.
Where should I start?
Start with the topic you find hardest, or the one your next test is on. Read a lesson, then close it and write down what you remember before moving on.