Soc 1: The relationship between health and fitness, Soc 24: Energy Use And Diet, Soc 22: Physical, Emotional And Social health, fitness and well-being...
3.1.1a) The need for specialised exchange surfaces, 3.1.1b) The features of an efficient exchange surface, 3.1.1c) The structures and functions of the components of the mammalian gaseous exchange system...