The universe is one gigantic web of subsystems , which are interrelated. They're integrated in multiple ways and each is a subsystem of something bigger than itself. For instance, a human being is composed of the blood subsystem, the nervous subsystem, the muscle subsystem, etcetera. At the same time a human being is a subsystem of a family, which is a subsystem of community, and the community a subsystem of a nation. A nation is a subsystem of humanity, which is a subsystem of the planet , sharing it with other subsystems, the flora, fauna and the air and water subsystems.