Define zonation in the context of ecological systems.
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Syllabus Edition
First teaching 2024
First exams 2026
Define zonation in the context of ecological systems.
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State one abiotic factor that can cause zonation.
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Define the term succession.
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Outline one difference between primary and secondary succession.
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State one factor that increases as an ecosystem undergoes succession.
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Outline how various factors influence the resilience of an ecosystem.
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Explain how larger populations can affect ecosystem resilience.
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The figure below shows how the dominant vegetation and crop production changes with altitude in the Andes mountain range in South America.
The changes in dominant vegetation shows a distinct pattern.
State the ecological term used to describe this pattern.
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Outline how species diversity increases towards the later stages of succession.
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Describe the processes involved in the formation of fertile soils from bare rock.
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Discuss the factors contributing to the low resilience of coniferous forest monocultures.
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