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Edexcel IGCSE Biology (4DS0)

The nature and variety of living organisms, structure and functions, reproduction, inheritance, ecology and use of biological resources.

Biology study space

Unit 1: The Nature and Variety of Living Organisms

Biology
  • What’s covered
    • Characteristics of living organisms
    • Variety of living organisms

Unit 2: Structure and Functions in Living Organisms

Biology
  • What’s covered
    • Level of organisation
    • Cell structure
    • Biological molecules
    • Movement of substances into and out of cells
    • Nutrition
    • Respiration
    • Gas exchange
    • Transport
    • Excretion
    • Co-ordination and response

Unit 3: Reproduction and Inheritance

Biology
  • What’s covered
    • Reproduction
    • Inheritance

Unit 4: Ecology and the Environment

Biology
  • What’s covered
    • The organism in the environment
    • Feeding relationships
    • Cycles within ecosystems
    • Human influences on the environment

Unit 5: Use of Biological Resources

Biology
  • What’s covered
    • Food production
    • Selective breeding
    • Genetic modification (genetic engineering)