IB ESS HL 2.2.9 Consumer Energy Sources Question Bank
Trace how consumers obtain chemical energy from producers and other organisms.
- 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
2.2.9—Consumer energy sources question 1
Figure:Energy flow through an ecosystem
the ecosystem energy-flow diagram shown above below shows the energy flow in an ecosystem. The width of the arrows is proportional to the quantity of energy transferred.
With reference to the ecosystem energy-flow diagram shown above,
State the group of organisms at C that feed on dead plants, animals and feces.
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