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Revision checklist
• Adaptations• Competition• Farming methods• TB in cattle• Indicator species• Food webs and chains• Chemicals in the food chain• Fertilisers – nitrates build
up in water = animals suffocate
• Pyramids of biomass and number
• Carbon cycle• Nitrogen cycle
• Genes, DNA, alleles• Genetic profiling• Sex chromosomes• Punnett squares and key
words• Dominant and recessive• Variation and Gregor Mendel• Genetic modification (GM)• Gene therapy (cystic
fibrosis)• Variation (continuous and
discontinuous)• Mutations• Evolution• Natural selection (e.g. In
rats and bacteria)
• Negative feedback• Control of body
temperature• Control of blood
glucose levels• Plant responses
(gravitropism, phototropism)
• Diagram of skin
• Health:• Drugs• Alcohol• Smoking• Food groups• Drug testing
QWC questions
• How did “......................” develop this characteristic over time =
• How do nitrates affect aquatic animals?
• Temperature regulation– Sweating– Hairs / feathers– Blood vessels
How would you investigate the amount of energy in different foods?
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