Test Your Health Smarts: 30 Essential Questions About Wellness

What is the key role of the respiratory system in the human body?

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Correct Incorrect The correct answer is：Facilitating the exchange of oxygen and carbon dioxide with the surroundings

What is the key role of the respiratory system in the human body?

Circulating blood to every part of the body
Breaking down food and absorbing essential nutrients
Facilitating the exchange of oxygen and carbon dioxide with the surroundings
Clearing toxins and impurities from the bloodstream

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