Edexcel International GCSE (9–1) Biology 4BI1 · 4.7
Food chains, food webs and ecological pyramids
- Code
- 4.7
- In
- 4b Feeding relationships
- Topic
- 4 Ecology and the environment
- Course
- International GCSE (9–1) Biology 4BI1
- 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 in 4b Feeding relationships
- 4.6 Trophic levels
- 4.7 Food chains, food webs and ecological pyramids
- 4.8 Transfer of substances and energy in food chains
- 4.9 Energy transfer between trophic levels