The circulatory and respiratory systems work together primarily by exchanging oxygen and carbon dioxide. The respiratory system takes in oxygen from the air and transfers it to the blood, while the circulatory system transports the oxygenated blood to the body's tissues and returns carbon dioxide from the tissues back to the lungs for exhalation.
How do the circulatory and respiratory systems work together? (1 point)
• By transporting hormones throughout the body
• By digesting and absorbing nutrients
• By protecting against infections
• By exchanging oxygen and carbon dioxide
1 answer
1 answer