Practice by Topic
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Unit 1: The Living World: Ecosystems (70) 0
  • Introduction to ecosystems 10 0
  • Terrestrial and aquatic biomes 10 0
  • Primary productivity 10 0
  • Carbon-nitrogen-phosphorus-and water cycles 10 0
  • Trophic levels 10 0
  • The flow of energy in an ecosystem and the 10% rule 10 0
  • Food chains and food webs 10 0
Unit 2: The Living World: Biodiversity (60) 0
  • Introduction to biodiversity 10 0
  • Ecosystem services 10 0
  • Island biogeography 10 0
  • Ecological tolerance 10 0
  • Natural disruptions to ecosystems 10 0
  • Ecological succession 10 0
Unit 3: Populations (50) 0
  • Generalist and specialist species 10 0
  • Survivorship curves 10 0
  • Population growth and resource availability 10 0
  • Age structure diagrams 10 0
  • Human population dynamics 10 0
Unit 4: Earth Systems and Resources (60) 0
  • Tectonic plates 10 0
  • Soil formation and erosion 10 0
  • Earth's atmosphere 10 0
  • Global wind patterns 10 0
  • Earth's geography and climate 10 0
  • El Niño and La Niña 10 0
Unit 5: Land and Water Use (90) 0
  • The tragedy of the commons 10 0
  • The Green Revolution 20 0
  • Types and effects of irrigation 10 0
  • Pest-control methods 10 0
  • Meat production methods and overfishing 10 0
  • The impacts of mining 10 0
  • Urbanization and ecological footprints 10 0
  • Introduction to sustainable practices including crop rotation and aquaculture 10 0
Unit 6: Energy Resources and Consumption (40) 0
  • Energy sources and fuel types-including fossil fuels-ethanol-and nuclear power 10 0
  • Global energy consumption and distribution of natural resources 10 0
  • Natural sources of energy-including solar power-wind-geothermal-and hydroelectric power 10 0
  • Energy conservation methods 10 0
Unit 7: Atmospheric Pollution (60) 0
  • Introduction to air pollution 10 0
  • Photochemical smog 10 0
  • Indoor air pollution 10 0
  • Methods to reduce air pollutants 10 0
  • Acid rain 10 0
  • Noise pollution 10 0
Unit 8: Aquatic and Terrestrial Pollution (60) 0
  • Sources of pollution 10 0
  • Human impact on ecosystems 10 0
  • Thermal pollution 10 0
  • Solid waste disposal and waste reduction methods 10 0
  • Pollution and human health 10 0
  • Pathogens and infectious diseases 10 0
Unit 9: Global Change (50) 0
  • Ozone depletion 10 0
  • Global climate change 10 0
  • Ocean warming and acidification 10 0
  • Invasive species 10 0
  • Human impacts on diversity 10 0