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IB ESS SL 2.1.20 Ecosystems As Open Systems Questions

Practise IB ESS SL 2.1.20 by identifying ecosystems and explaining how energy, matter and communities interact with their surroundings.

Syllabus
First assessment 2026
Course
ESS SL
Level
SL

Exam points

  • identify ecosystems and describe their communities, habitats and surrounding physical environments
  • explain how energy and matter enter, move through and leave an ecosystem as an open system
  • analyse interactions between communities and physical conditions using ecosystem examples
  • evaluate how changes to one ecosystem can affect neighbouring communities through shared flows and services

Learn this topic

Study 2.1.20—Ecosystems as open systems conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB ESS SL 2.1.20 Ecosystems As Open Systems Questions question 1

[Maximum number: 1]
Map of Algonquin Provincial Park, Canada

Figure:Map of Algonquin Provincial Park, Canada

Identify one ecosystem in Algonquin Provincial Park.

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