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Cambridge IGCSE Biology (0610)

1. Characteristics and classification of living organisms

2. Organisation of the organism

3. Movement into and out of cells

4. Biological molecules

6. Plant nutrition

7. Human nutrition

8. Transport in plants

9. Transport in animals

10. Diseases and immunity

11. Gas exchange in humans

12. Respiration

13. Excretion in humans

14. Coordination and response

16. Reproduction

17. Inheritance

18. Variation and selection

19. Organisms and their environment

19.1 Energy flow

19.1.1—Sun is the principal source of energy

19.1.2—Flow of energy through living

19.2 Food chains and food webs

19.3 Nutrient cycles

19.4 Populations

20. Human influences on ecosystems

21. Biotechnology and genetic modification

22. Assessed scientific skills

IGCSE/CAIE/Biology//Concept/19. Organisms and their environment/19.1 Energy flow/19.1.1—Sun is the principal source of energy

19. Organisms and their environment

Syllabus: 0610–2026–2027
Section: 19
Level: —

Exam analysis

Most tested topics

Energy flow
Food chains and food webs
Nutrient cycles
Populations