Movement
because it does
The respiratory system helps you to breathe and if you couldn't breathe correctly your immune system would go down. That is how these system rely on each other.
Nothing
The common route of central nervous system invasion by pathogens is through hematogenous spread, in which the pathogens enter the bloodstream and are carried to the brain or spinal cord. This can occur following infections in other parts of the body, such as respiratory or urinary tract infections.
Tcp/Ip
Nothing permanently cleans out your system, so the answer would be no.
The Greeks in Athens never had to rely on a system of representative government because their population was so small they could all easily participate.
Windows 7 is an operating system. It does not rely on any other operating system to function.
Zero and one.
the digestive system and the respiratory system, or the lymphatic system and the endocrine system, or the digestive system and the cardiovascular system, or the endocrine system and the cardiovascular system
I think its because The committee system help them with the large amount of specific knowledge.