because the gravity of the earth and heat of the sun ..
The lungs are part of the respiratory and excretory systems.
The cardiovascular system transports the oxygen brought in by the respiratory system to other areas of the body.
Because the other Organ systems help with important things, but the respiratory system is the most important because it is basically the breathing system. You need to breath to live, so, the respiratory system is the boss of all the other body systems.(Do not change this, it is the correct answer)
Organ systems work together through communication and coordination to maintain homeostasis in the body. For example, the respiratory system provides oxygen to the circulatory system, which delivers it to cells throughout the body. The nervous system controls and coordinates the activities of all other organ systems.
The human organ systems that interconnect with each other include the nervous system and the muscular system (for movement coordination), the circulatory system and the respiratory system (for oxygen exchange), and the digestive system and the circulatory system (for nutrient absorption and transport).
Organ systems are interconnected and work together to maintain the body's overall function. For example, the circulatory system transports oxygen and nutrients to all cells in the body, while the respiratory system provides the oxygen for the circulatory system. Any disruption in one system can affect the function of other systems.
I would say the circulatory system considering that the respiratory systems only purpose is to obtain oxygen from the air and put it into your blood. The circulatroy system and the respiratory sysetm work hand in had. The alveoli absorb the oxygen but the blood does the actual job of getting the oxygen around the body.
Respiratory system provides O2 to all other body systems , no life is possible with out O2 .
Circulatory. no
None.
Circulatory system
The respiratory system helps the circulatory system. circulatory system