How organ systems are independent?

Organ systems are independent in that each system has specific functions that do not rely on the direct operation of other systems. For example, the respiratory system facilitates gas exchange, while the digestive system processes nutrients. However, they can interact and support one another; for instance, the circulatory system transports oxygen from the respiratory system to cells that need it for energy, illustrating that while they can function independently, they often work collaboratively to maintain overall homeostasis.