Assess students' understanding of the physiological differences between aerobic and anaerobic energy systems—covering primary metabolic pathways (ATP-PCr, glycolysis, oxidative phosphorylation), typical time/intensity domains and substrates, fatigue mechanisms, sport examples, and how different training stimuli produce adaptations (mitochondrial density, capillarization, lactate threshold, anaerobic enzyme activity, fiber-type and performance outcomes) and inform exercise prescription.