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Biology — Modular 2024, Unit 2

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Biology — Modular 2024, Unit 2

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SyllabAI Hub — revision for Edexcel IGCSE & IAL and Cambridge International qualifications.

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Edexcel IGCSE Biology — Modular 2024, Unit 2 Revision Notes

Exam code:4XBI1

Choose a topic to read concise revision notes — 99 notes across 13 subtopics, with examiner tips and worked examples.

1. Structure and functions in living organisms: Part

· 34 notes

1Transport14 notes
2Excretion7 notes
3Co-ordination and response13 notes

2. Reproduction and inheritance

· 33 notes

1Reproduction13 notes
2Inheritance20 notes

3. Ecology and the environment

· 15 notes

1The organism in the environment5 notes
2Feeding relationships3 notes
3Cycles within ecosystems2 notes
- Carbon Cycle Start guided lesson
- Nitrogen Cycle Start guided lesson
4Human influences on the environment5 notes

4. Use of biological resources

· 17 notes

1Food production9 notes
2Selective breeding2 notes
- Selective Breeding in Animals Start guided lesson
- Selective Breeding in Plants Start guided lesson
3Genetic modification (genetic engineering)4 notes
4Cloning2 notes
- Micropropagation Start guided lesson
- The Production of Cloned Mammals Start guided lesson