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Questions and Answers
What is the primary role of the circulatory system?
What is the primary role of the circulatory system?
- To transport nutrients and oxygen to cells (correct)
- To filter waste from the blood
- To regulate body temperature
- To exchange gases between the body and the environment
Which organ is primarily responsible for gas exchange in the respiratory system?
Which organ is primarily responsible for gas exchange in the respiratory system?
- Heart
- Lungs (correct)
- Liver
- Kidneys
How does the heart contribute to the circulatory system?
How does the heart contribute to the circulatory system?
- It produces red blood cells
- It removes waste products from the blood
- It filters blood before it reaches the lungs
- It pumps blood throughout the body (correct)
What is one function of hemoglobin in the blood?
What is one function of hemoglobin in the blood?
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What component of the respiratory system helps protect against dust and pathogens?
What component of the respiratory system helps protect against dust and pathogens?
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