Biology GCSE
First trophic level
What First trophic level means in Biology GCSE, as defined for AQA.
Definition of First trophic level
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Reference: AQA
The position occupied by producers in every food chain because they do not need to eat other organisms to obtain carbon.
Topics that use First trophic level
- Levels of organisation (AQA GCSE)
Related terms
- Biomass
- Consumers
- Distribution along environmental gradients
- Energy transfer
- Food chains
- food web
- Interdependence and food supply
- Negative feedback
Using First trophic level in the exam
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