What this topic covers
Topic 9: Ecosystems and material cycles has 4 subtopics:
- Adaptations, interdependence and competition
- Organisation of an ecosystem
- Biodiversity and the effect of human interaction on ecosystems
- Additional ecosystem anchors
GCSE Edexcel Higher Combined Science Biology
Topic 9: Ecosystems and material cycles – GCSE Edexcel Higher Combined Science Biology revision notes
Revise Topic 9: Ecosystems and material cycles for GCSE Edexcel Higher Combined Science Biology, including Adaptations, interdependence and competition.
Communities, ecosystems, biodiversity, trophic levels and material cycles. 27 lessons in 4 subtopics.
27
Lessons
4
Subtopics
Topic 9: Ecosystems and material cycles lessons by subtopic
27 lessons, grouped by subtopic.
Adaptations, interdependence and competition
- Understanding Ecosystems and Their Organisation
- Competition and Survival in Communities
- Interdependence and Community Stability
- Physical Abiotic Factors in Ecosystems
- Chemical Abiotic Factors and Specialized Environments
- Analyzing the Impact of Abiotic Changes on Communities
- Living Factors Affecting Communities
- Analyzing Changes in Communities
- Types of Adaptations
- Extremophiles and Extreme Environments
Organisation of an ecosystem
- Working with ecological data
- Producers and feeding relationships
- Studying ecosystems and predator-prey relationships
- Material cycling in ecosystems
- The carbon and water cycles
- Microorganisms in material cycling
Biodiversity and the effect of human interaction on ecosystems
- What is Biodiversity and Why Does it Matter?
- Human Impact on Biodiversity
- Types and Sources of Pollution
- Human Impact on Pollution and Biodiversity
- How Human Activities Reduce Land for Wildlife
- Causes of Large-Scale Deforestation
- Understanding Global Warming and Its Biological Impact
- Human Impacts on Biodiversity
- Conservation Programmes and Habitat Protection
- Global and Local Environmental Solutions
Additional ecosystem anchors
More in this course
Go back to the full GCSE Edexcel Higher Combined Science Biology topic list, or practise this topic with past-paper questions.
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