Food chains
What Food chains means in Biology GCSE, as defined for AQA, Pearson Edexcel.
Definitions of Food chains
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Reference: AQA
A food chain shows the direction of energy transfer between organisms, with each arrow pointing from the organism being eaten to the organism that eats it.
The route along which the food and biomass created by producers pass to consumers.
Topics that use Food chains
- Levels of organisation (AQA GCSE)
- Topic 6 – Plant structures and their functions (Pearson Edexcel GCSE)
Related terms
- Biomass
- Photosynthesis
- Producers
- Consumers
- Distribution along environmental gradients
- Energy transfer
- First trophic level
- food web
Using Food chains in the exam
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