These are the notes I used for Edexcel Biology GCSE to get Grade 9. This covers all the specification points of Topic 9 Ecosystems and Material Cycles. These notes are detailed yet concise with diagrams as well as EXAM- STYLE QUESTIONS to aid understanding.
Key sub-topics covered: ecosystems, interdependence, human interactions, food security , carbon cycle, nitrogen cycle, water cycle, indicator species, food preservation, rate of food decomposition, energy transfer.
CORE PRACTICAL: Investigating the relationship between organisms and their environment
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