6.2 | Climate change (plus HL)
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Biology-2025
6.4 | Diversity of organisms (plus HL)
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6.5 | Conservation of biodiversity
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6.6 | Populations and communities
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6.7 | Stability and change (plus HL)
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6.8 | Transfers of energy and matter
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7.1 | Natural selection (plus HL)
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7.2 | Evolution and Speciation (Plus HL)
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7.3 | Classification and Cladistics (HL only)
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