Edexcel IGCSE Biology Biology Paper 2 November 2020 examiner report (4BI1/2BR)
Examiner report
- Q1 - 18 marks - Cloning mammals, Diet and nutrition, Selective breeding, Sex determination, Variation
- Q2 - 9 marks - Abiotic and biotic factors, Factors affecting enzyme activity, The carbon cycle
- Q3 - 6 marks - Photosynthesis, Root hair cells, Transpiration
- Q4 - 10 marks - Abiotic and biotic factors, Energy in ecosystems, Hormones and the endocrine system, Protein synthesis
- Q5 - 9 marks - Immunisation, Pathogens
- Q6 - 10 marks - Enzyme action, Genetic variants and mutation, Sexual and asexual reproduction, Variation
- Q7 - 8 marks - Gas exchange
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