Biology GCSE
Decomposition
What Decomposition means in Biology GCSE, as defined for AQA.
Definitions of Decomposition
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Reference: AQA
The breaking down of dead organisms, fallen leaves and animal waste by microorganisms such as bacteria and fungi, which digest complex organic compounds and absorb nutrients.
The breaking down of dead organisms and waste by decomposers, whose respiration returns carbon dioxide to the atmosphere.
Topics that use Decomposition
- How materials are cycled (AQA GCSE)
Related terms
- Building blocks for life
- Carbon cycle processes
- Combustion of fossil fuels
- Cycling of matter
- Decomposition and decay
- Evaporation and condensation
- Fresh water supply and drainage
- Microorganisms and nutrient cycling
Using Decomposition in the exam
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