The respiratory system takes oxygen into the human body and expels carbon dioxide. which body system interacts with the respiratory system to transport these gases to and from the various parts of the body?
a. the nervous system
b. the digestive system
c. the urinary system
d. the circulatory system

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.