Edexcel GCSE Biology 1BI0 · 9
Ecosystems and material cycles
- Code
- 9
- Topic of
- Edexcel GCSE Biology 1BI0
- Course
- GCSE Biology 1BI0
- Board
- Edexcel
Grade boundaries·Edexcel command words
Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.
Points under 9
- 9.1 Levels of organisation in ecosystems
- 9.2 Abiotic and biotic factors affecting communities
- 9.3 Interdependence in a community
- 9.4 Parasitism and mutualism
- 9.5 Core practical: fieldwork with quadrats and transects
- 9.6 Estimating population size from fieldwork data
- 9.7B Energy transfer between trophic levels
- 9.8B Efficiency of energy and biomass transfers
- 9.9 Human interactions with ecosystems and biodiversity
- 9.10 Benefits of maintaining biodiversity
- 9.11B Biological factors affecting food security
- 9.12 Cycling of materials in ecosystems
- 9.13 The carbon cycle
- 9.14 The water cycle and potable water
- 9.15 The nitrogen cycle and nitrates for plants
- 9.16B Indicator species and pollution
- 9.17B Decomposition and food preservation
- 9.18B Decomposition and composting
- 9.19B Rates of decay of biological material