Chapter 3.3 The Nitrogen Cycle And The Phosphorus Cycle,
Chapter 3.2 The Carbon Cycle And The Oxygen Cycle,
Chapter 1.1 Equilibrium In The Biosphere
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22.1 The Darwinian revolution challenged traditional views of a young Earth inhabited by unchanging species,
22.2 Descent with modification by natural selection explains the adaptations of organisms and the unity and diversity of life,
22.3 Evolution is supported by an overwhelming amount of scientific evidence
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