The digestive system does not work with the immune system to regulate body functions.
The digestive system does not work with the immune system to regulate body functions.
The digestive system does not work with the immune system to regulate body functions.
The digestive system does not work with the immune system to regulate body functions.
The digestive system does not work with the immune system to regulate body functions.
blood
== ==
no
the brain.
Decrease mass, thereby decreasing inertia in the system, or increase power, thereby overcoming the effect of the inertia.
nervous system
The nervous system sends the signals to the heart to pump.