1. Characteristics and classification of living organisms1.1 Classification of living organisms0/01. Characteristics and classification of living organisms1.1 Classification of living organisms0/02. Organisation of the organism2.1 Cell structure0/02.2 Cell division0/02.3 Principles of organisation0/02.4 Animal tissues, organs and organ systems0/02.5 Plant tissues, organs and systems0/02. Organisation of the organism2.1 Cell structure0/02.2 Cell division0/02.3 Principles of organisation0/02.4 Animal tissues, organs and organ systems0/02.5 Plant tissues, organs and systems0/03. Movement in and out of cells3.1 Transport in cells0/03. Movement in and out of cells3.1 Transport in cells0/04. Biological molecules4.1 Biological molecules0/04. Biological molecules4.1 Biological molecules0/05. EnzymesPremium5.1 Enzymes0/05. EnzymesPremium5.1 Enzymes0/06. Plant NutritionPremium6.1 Photosynthesis0/06. Plant NutritionPremium6.1 Photosynthesis0/07. Human nutritionPremium7.1 Human nutrition0/07. Human nutritionPremium7.1 Human nutrition0/08. Transport in plantsPremium8.1 Transport in plants0/08. Transport in plantsPremium8.1 Transport in plants0/09. Transport in animalsPremium9.1 Transport in animals0/09. Transport in animalsPremium9.1 Transport in animals0/010. Diseases and immunityPremium10.1 Communicable diseases0/010.2 Monoclonal antibodies0/010.3 Plant disease0/010. Diseases and immunityPremium10.1 Communicable diseases0/010.2 Monoclonal antibodies0/010.3 Plant disease0/011. Gas exchange in humanPremium11.1 Gas exchange in human0/011. Gas exchange in humanPremium11.1 Gas exchange in human0/012. RespirationPremium12.1 Respiration0/012. RespirationPremium12.1 Respiration0/013. Excretion in humansPremium13.1 Excretion in humans0/013. Excretion in humansPremium13.1 Excretion in humans0/014. Coordination and responsePremium14.1 Homeostasis0/014.2 The human nervous system0/014.3 Hormonal coordination in humans0/014.4 Plant hormones0/014. Coordination and responsePremium14.1 Homeostasis0/014.2 The human nervous system0/014.3 Hormonal coordination in humans0/014.4 Plant hormones0/015. DrugsPremium15.1 Drugs0/015. DrugsPremium15.1 Drugs0/016. ReproductionPremium16.1 Reproduction0/016. ReproductionPremium16.1 Reproduction0/017. InheritancePremium17.1 The development of understanding of genetics and evolution0/017. InheritancePremium17.1 The development of understanding of genetics and evolution0/018. Variation and selectionPremium18.1 Variation and evolution0/018. Variation and selectionPremium18.1 Variation and evolution0/019. Organisms and their environmentPremium19.1 Adaptations, interdependence and competition0/019.2 Organisation of an ecosystem0/019.3 Trophic levels in an ecosystem0/019. Organisms and their environmentPremium19.1 Adaptations, interdependence and competition0/019.2 Organisation of an ecosystem0/019.3 Trophic levels in an ecosystem0/020. Human influences on ecosystemsPremium20.1 Biodiversity and the effect of human interaction on ecosystems0/020.2 Food production0/020. Human influences on ecosystemsPremium20.1 Biodiversity and the effect of human interaction on ecosystems0/020.2 Food production0/021. Biotechnology and genetic modificationPremium21.1 Biotechnology and genetic modification0/021. Biotechnology and genetic modificationPremium21.1 Biotechnology and genetic modification0/0