Diagram pack
Food Chain and Energy Flow
Producers, consumers, decomposers — energy loss at each link.
Energy flows one way through ecosystems with loss at each step.
Content quality
Content quality
- Quality
- Teacher-ready
- Review
- Not reviewed
- Age suitability
- Lower secondary
- Safety
- Safe for guided learning
- License
- Original content
Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.
- Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.
Curriculum alignment
Aligned for classroom support — not official national syllabus certification.
Cameroon · O Level · Biology · Photosynthesis · GCE O Level
Cameroon · Anglophone / Francophone schools
O Level · Biology · Photosynthesis · GCE O Level
Mapped to common school topics — aligned for classroom support, not official syllabus certification.
International · General STEM
O Level · Biology · Photosynthesis
Global STEM foundation support for diagrams and practice.
What you will understand
Energy flows one way through ecosystems with loss at each step.
What you will draw
Chain diagram with sun and arrows.
What you will write
Producer, consumer, decomposer.
Where you will use it
Conservation and fishing limits use food chains.
Key vocabulary
- Producer
- Consumer
- Decomposer
- Trophic level
- Energy transfer
Flow stages
- 1
Producer
Plant captures sun.
- 2
Consumers
Herbivore and carnivore.
- 3
Decomposer
Nutrients return to soil.
Drawing steps
Drawing steps
- Sun and plant
- Herbivore arrow
- Carnivore arrow
- Decomposer to soil
Application
Flow
- Sun → plant → herbivore → carnivore → decomposer
Real-life application
- Why are there fewer apex predators?
Common mistakes
Common mistakes to avoid
- Arrows pointing wrong
- Missing sun energy source