IGCSE - Biology Resources

IGCSE - Biology

S1:Characteristics and classification

1.Characteristics of living organisms

2.Classification and diversity of living organisms

3.Simple keys

S2:Organism Organisation & maintenance

1.Cell structure and organisation

2.Levels of organisation

3.Size of specimens

4.Movement in and out of cells

5.Enzymes

6.Nutrition

7.Transportation

8.Respiration

9.Excretion in humans

10.Coordination and response

S3:Organism Development & continuity of life

1.Reproduction

2.Growth and development

3.Inheritance

S4:Relationships of organisms

1.Energy flow

2.Food chains and food webs

3.Nutrient cycles

4.Population size

5.Human influences on the ecosystem