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Material cycling — OCR GCSE Biology A J247
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Biology
OCR GCSE Biology A
Community level systems
Ecosystems
Material cycling
OCR GCSE Biology A · J247
Material cycling
What you need to know
Identify that materials such as nitrogen and carbon cycle through abiotic and biotic ecosystem components.
Revision notes
1
Material cycling
4 key terms
Practise with past papers
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Previous section: Organism level systems
Response to challenges
Next subtopic
Role of microorganisms
