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Questions and Answers
Which organs are included in the blood circulatory system?
What does the term 'cardiovascular system' refer to?
How many divisions does the circulatory system have?
What type of circulatory system do vertebrates have?
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What are the great vessels of the heart?
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Which of the following is NOT a component of the respiratory system?
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Where does gas exchange occur in land animals?
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What is the largest airway in the respiratory system?
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Which organisms have an internalized respiratory surface as linings of the lungs?
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How do the respiratory air sacs communicate with the external environment?
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