GCSE Biology

AQA

Module 7: Ecology

7.1 Adaptations, interdependence and competition

Ecosystem key terms and competition
Abiotic and biotic factors
Adaptations
Food chains and webs
Predator and prey cycles
Using quadrats to estimate population size and using transects to investigate distribution
Required practical - Sampling to measure population size and the effect of a factor on distribution

7.2 Organisation of an ecosystem

The carbon cyle
The water cycle
Triple Science Only - Decomposition
Triple Science Only - Required practical- rate of decay
Biodiversity and maintaining biodiversity
Waste management
Destruction of peat bogs
Deforestation
Global warming

7.4 Triple Science Only - Trophic levels in an ecosystem

Triple Science Only - Trophic levels and pyramids of biomass
Triple Science Only - Transfer of biomass

7.5 Triple Science Only - Food production

Triple Science Only - Food security- including farming techniques and sustainable fisheries
Triple Science Only - The role of biotechnology
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