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Biology
Ecosystems and Material Cycles
Edexcel
1BI0
Ecosystems and Material Cycles
Ecosystems
6 Subtopics
1
Levels of Organisation
Revise
2
Abiotic and Biotic Factors
Revise
3
Interdependence
Revise
4
Parasitism and Mutualism
Revise
5
Field Work Investigation
Revise
6
Determining Organism Numbers
Revise
Energy and Biomass
2 Subtopics
1
Energy Transfer and Biomass
Revise
2
Efficiency of Energy Transfer
Revise
Biodiversity and Human Impact
3 Subtopics
1
Human Interactions in Ecosystems
Revise
2
Maintaining Biodiversity
Revise
3
Food Security
Revise
Material Cycles
4 Subtopics
1
Cycling of Materials
Revise
2
Carbon Cycle
Revise
3
Water Cycle
Revise
4
Nitrogen Cycle
Revise
Pollution and Decay
4 Subtopics
1
Indicator Species
Revise
2
Decomposition in Food Preservation
Revise
3
Decomposition in Composting
Revise
4
Rate of Decay Calculations
Revise
