IB ESS HL 2.1.1 Biosphere Composition Topic Practice

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ConceptConcept DocsDocuments

IB Environmental Systems and Societies

Topic 1: Foundation

Topic 2: Ecology

2.1 Individuals, populations, communities, and ecosystems

2.1.1—Biosphere composition

2.1.2—Species definition

2.1.3—Classification of organisms

2.1.4—Taxonomist tools

2.1.5—Population definition

2.1.6—Distribution factors

2.1.7—Abiotic factors examples

2.1.9—Population interactions

2.1.10—Carrying capacity

2.1.11—Density-dependent regulation

2.1.12—Population growth curves

2.1.13—Human population limiting factors

2.1.14—Human carrying capacity

2.1.15—Estimating population abundance

2.1.16—Quadrat sampling

2.1.17—Capture-mark-release-recapture

2.1.18—Community definition

2.1.19—Habitat definition

2.1.20—Ecosystems as open systems

2.1.21—Ecosystem sustainability

2.1.22—Human impacts on stability

2.1.23—Keystone species

2.1.24—Biosphere integrity boundary

2.1.25—Reversing biosphere integrity loss

2.1.26 (HL)—Clades and evolutionary classification

2.1.27 (HL)—Limits of traditional taxa

2.1.28 (HL)—Fundamental and realized niches

2.1.29 (HL)—Life cycles and r/K strategies

2.1.30 (HL)—Human impacts on species

2.2 Energy and biomass in ecosystems

2.3 Biogeochemical cycles

2.4 Climate and biomes

2.5 Zonation, succession and change

Topic 3: Biodiversity and conservation

Topic 6: Atmosphere and climate change

Topic 7: Natural resources

Topic 8: Human populations and urban systems

IB/ESS/HL//Question Bank/Topic 2: Ecology/2.1 Individuals, populations, communities, and ecosystems/2.1.1—Biosphere composition

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