Which system is not categorized as an aggregate system?

The anti-gravity feed system is not categorized as an aggregate system because it operates on principles that do not rely on the combination or utilization of different components in a typical aggregate setup. Aggregate systems usually involve the accumulation or combination of materials or components to create a unified operational structure, typically seen in farming or agricultural operations where systems are designed to work collaboratively.

In contrast, an anti-gravity feed system is a more specialized mechanism that focuses on counteracting gravity to transport or manage resources without conforming to the aggregative nature associated with other systems. Aggregate systems, such as subirrigation, manual gravity feed, and gravity feed systems, generally involve the movement of water or nutrients relying on gravity, pressure, and other collective forces. This is not the case with the anti-gravity feed system, positioning it as distinctly separate from the others categorized as aggregate systems.