Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 38 - Self-Quiz - Page 685: 13

Answer

True

Work Step by Step

The total lung volume (5.7 liters in men and 4.2 liters in women) is never fully expelled; only about 0.5 liters of air is inhaled and exhaled in one regular respiratory cycle. The lungs are never completely empty; you always have a mixture of fresh air and stale air within your lungs at any given time.
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