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Curricula
IGCSE
Pearson Edexcel
Science
Double Award / Biology
4. Ecology & the Environment
4. Ecology & the Environment
1
The Organism in the Environment
1.1
Abiotic & Biotic Factors
1.2
Population, Community, Habitat & Ecosystem
1.3
Practical: Investigating Population Size
2
Feeding Relationships
2.1
Transfers Along a Food Chain
2.2
Trophic Levels
2.3
Food chains, Food webs & Pyramids
3
Cycles within Ecosystems
3.1
Carbon Cycle
4
Human Influences on the Environment
4.1
Biological Consequences of Air Pollution
4.2
Enhanced Greenhouse Effect
4.3
Greenhouse Gases
4.4
Biological Consequences of Water Pollution
