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Adaptations are forms that correspond to function. These adaptations persist from generation to generation because they increase the chances of survival.

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B 1.1 Carbohydrates and Lipids

B1.2 Proteins

B 2.1 Membranes and Membrane Transport

B2.2 Organelles and Compartmentalisation

B2.3 Cell Specialisation

B3.1 Gas Exchange

B3.2 Transport

B 4.1 Adaptation to environments

B4.2 Ecological niches