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24 questions
What is the biggest function of the respiratory system?
to pump blood
to help us digest food
to take in oxygen and release carbon dioxide
to help us fight disease and infection
Which of the following statements describes the function of the heart?
The heart produces white and red blood cells.
The heart controls the nervous system.
The heart makes oxygen and carbon dioxide.
The heart pumps blood throughout the body.
Which system in the human body functions primarily to supply the blood with oxygen and remove carbon dioxide?
excretory
immune
respiratory
cardiovascular
Which of the following statements describes the function of the small intestine?
The small intestine transports blood to other organs.
The small intestine helps digest food and absorbs nutrients.
The small intestine releases carbon dioxide from the body.
The small intestine produces cells needed for reproduction.
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