Chapter 21. 21·12–21·17 The respiratory system enables gas exchange in animals.

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Instructions

Check your understanding of concepts from 21·12–21·17 The respiratory system enables gas exchange in animals by answering the following questions.

Question 21.1

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Correct. (See section 21·12 Oxygen and carbon dioxide must get into and out of the circulatory system.)
Incorrect. (See section 21·12 Oxygen and carbon dioxide must get into and out of the circulatory system.)

Question 21.2

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Correct. (See section 21·13 Oxygen is transported while bound to hemoglobin.)
Incorrect. (See section 21·13 Oxygen is transported while bound to hemoglobin.)

Question 21.3

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Correct. (See section 21·14 Gas exchange takes place in the gills of aquatic vertebrates.)
Incorrect. (See section 21·14 Gas exchange takes place in the gills of aquatic vertebrates.)

Question 21.4

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Correct. (See section 21·15 Respiratory systems of terrestrial vertebrates move oxygen-rich air into and carbon-dioxide-rich air out of the lungs.)
Incorrect. (See section 21·15 Respiratory systems of terrestrial vertebrates move oxygen-rich air into and carbon-dioxide-rich air out of the lungs.)

Question 21.5

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Correct. (See section 21·16 Birds have unusually efficient respiratory systems.)
Incorrect. (See section 21·16 Birds have unusually efficient respiratory systems.)

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