Edexcel Igcse Biology Revision Notes
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IGCSE Biology
This is an international edition of the widely used textbook GCSE Biology. It provides up-to-date and comprehensive coverage of the core and supplementary topics specified in the IGCSE Biology syllabus. In particular: there is additional information on topics such as B and T lymphocytes, infertility, performance-enhancing hormones, fluoridation of water supplies, impact of hunting and over fishing and global warming; an additional chapter on selective breeding and cloning; an additional chapter on conservation which covers extinction, conservation of species, conservation of genes, conservation of habitats, and conservation of resources; a revised chapter on ecosystems includes information on adaptations and factors which affect communities; a final chapter on observation and experiment looks at the type of questions that can be investigated scientifically and the nature of evidence; and past examination questions have been updated.