IB ESS HL 2.2.7 Heat Generation Question Bank
Explain why metabolic processes generate heat and how heat leaves ecological systems.
- Syllabus
- First assessment 2026
- Course
- ESS HL
- Level
- HL
Exam points
- identify the ecological process or energy relationship
- apply the correct thermodynamic, productivity or trophic concept
- justify the conclusion from evidence and system boundary
2.2.7—Heat generation question 1
Figure:Example of a lake ecosystem
Figure: Example of a lake ecosystem below shows an example of a lake ecosystem.
Rooting flowering plants: producers
Identify one way in which energy may leave this ecosystem.
Birds: secondary and tertiary consumer eg kingfisher
Floating plants: producers eg lilies, water fern
Frog: secondary consumer
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