Which type of energy system provides energy for activities longer than several minutes?

The aerobic system is the correct answer because it is specifically designed to provide energy over extended durations, typically exceeding several minutes. This system utilizes oxygen to convert carbohydrates and fats into adenosine triphosphate (ATP), the energy currency of the cell. Unlike anaerobic systems, which primarily rely on energy from stored ATP and other quick-releasing energy sources and tend to be efficient for short bursts of activity, the aerobic system is optimized for endurance activities, such as long-distance running, swimming, or cycling.

In aerobic metabolism, the presence of oxygen allows for a more sustainable and efficient energy production process, which is essential for prolonged activities. This system can continuously supply energy as long as adequate oxygen and nutrients are available, making it ideal for activities spanning several minutes to several hours. Thus, when engaging in steady-state exercises or longer durations, individuals rely predominantly on the aerobic system for energy production.