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Learning objective

Interpret food chains, food webs and nutrient cycling within an ecosystem.

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Topic

Section B: The living world

Subtopic

Ecosystems

Aqa Gcse GeographyLiving with the physical environment

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Quick explanation

Interpret food chains, food webs and nutrient cycling within an ecosystem

  • This point belongs to Section B: The living world, especially Ecosystems.
  • You need to be able to interpret food chains, food webs and nutrient cycling within an ecosystem.
  • The key ideas to know are food chain, ecosystem, and food web.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

food chainecosystemfood web

Why it matters

This objective helps connect Ecosystems to exam-style questions, flashcards, and revision notes for Section B: The living world.

Quick student answer

What should a geography response explain about food chains, food webs and nutrient cycling within an ecosystem?

Direct answer

For Geography, this page helps you revise food chains, food webs and nutrient cycling within an ecosystem in Section B: The living world. Focus on the key terms, the exam command, and a clear answer that matches the question. Key terms to check are food chain and food web.

Key terms

  • food chain: A linear sequence of organisms where each is eaten by the next, illustrating the flow of energy and nutrients.
  • food web: A complex network of interconnected food chains that shows how energy and nutrients circulate within an ecosystem.

Common trap

Misunderstanding Food Webs: Emphasize that a food chain is a linear sequence of organisms, while a food web consists of multiple interconnected food chains showing the complex feeding relationships in an ecosystem.

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