# The respiratory system supplies oxygen to the blood in the body, while removing carbon dioxide. Which system directly interacts with the respiratory system to maintain homeostasis? A the excretory system when it sends out liquid waste as urea B the skeletal system when oxygen and glucose around the ribs are absorbed C the nervous system when the brain regulates the body's breathing and heart rate D the digestive system when food is broken down for nutrients

###### Question:

The respiratory system supplies oxygen to the blood in the body, while removing carbon dioxide. Which system directly interacts with the respiratory system to maintain homeostasis?
A
the excretory system when it sends out liquid waste as urea
B
the skeletal system when oxygen and glucose around the ribs are absorbed
C
the nervous system when the brain regulates the body's breathing and heart rate
D
the digestive system when food is broken down for nutrients

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