2. Consider the energy systems an 800m track athlete would use during a race. In a scenario where the runner has completed an adequate warm-up, their aerobic system is heightened and meeting the energy demands they're putting on their body, prior to beginning the race. a) During the first 400m of the race (approx. 1-1.5 minutes) they feel strong and quick, why? What are the energy systems their body is using? (Hint: there are 3, remember they have completed a warm-up) b) As the runner approaches the last 200m of the race (approx. 1.5-2.5 minutes), they begin to slow down. Why?

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Homeostasis

Homeostasis is a self-regulatory process through which different biological systems maintain constant internal environmental conditions to compensate for environmental changes. In human physiology, it is a process of self-regulating internal, chemical, and physical conditions at an optimal level for survival. The stability through homeostasis can be attained through dynamic equilibrium, in which there is a continuous change until it reaches its systemic conditions.