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IB Environmental Systems and Societies
Topic 1: Foundation
Topic 2: Ecology
2.1 Individuals, populations, communities, and ecosystems
2.2 Energy and biomass in ecosystems
2.3 Biogeochemical cycles
2.4 Climate and biomes
2.4.1—Climate vs. weather
2.4.2—Biome definition
2.4.3—Biome distribution determinants
2.4.4—Biome categories
2.4.5—Tricellular model
2.4.6—Ocean heat distribution
2.4.7—Global warming effects
2.5 Zonation, succession and change
Topic 3: Biodiversity and conservation
Topic 4: Water
Topic 5: Land
Topic 6: Atmosphere and climate change
Topic 7: Natural resources
Topic 8: Human populations and urban systems
IB/ESS/SL//Concept/Topic 2: Ecology/2.4 Climate and biomes/2.4.4—Biome categories

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