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Pearson Edexcel International GCSE Biology (4BI1)

1 The nature and variety of living organisms

2 Structure and functions in living organisms

3 Reproduction and inheritance

4 Ecology and the environment

(a) The organism in the environment

(b) Feeding relationships

4.6 Trophic levels

4.7 Concepts of food chains

4.8 Food chains and energy transfer

4.9 Ten percent energy transfer

(c) Cycles within ecosystems

(d) Human influences on the environment

5 Use of biological resources

6 Experimental skills

7 Mathematical skills

IGCSE/Edexcel/Biology//Concept/4 Ecology and the environment/(b) Feeding relationships/4.7 Concepts of food chains

4 Ecology and the environment

Syllabus: 2024
Section: 4
Level: —

Exam analysis

Most tested topics

(a) The organism in the environment
(b) Feeding relationships
(c) Cycles within ecosystems
(d) Human influences on the environment