Biology A-Level
aquatic ecosystems
What aquatic ecosystems means in Biology A-Level, as defined for AQA.
Definition of aquatic ecosystems
Check what you remember
Read the wording for your board, then hide it and explain aquatic ecosystems in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Systems in which producers utilise dissolved carbon dioxide and hydrogencarbonate ions as their carbon source.
Topics that use aquatic ecosystems
- Energy and ecosystems (A-level only) (AQA A-Level)
Related terms
- biological molecules
- biomass
- calorimetry
- Condensation reactions
- decomposers and saprobionts
- dry mass per unit area
- energy per gram of dry mass
- faeces and excretion
Using aquatic ecosystems in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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