Answer
C
Work Step by Step
Option C is correct because the structure labeled "4" on the diagram is the lungs. Emphysema is the result of damage done to the lungs where they lose their elasticity.
Biology 2010 Student Edition
by Miller, Kenneth R.; Levine, Joseph S.
Published by
Prentice Hall
ISBN 10:
9780133669510
ISBN 13:
978-0-13366-951-0
Chapter 33, Circulatory and Respiratory Systems - Standardized Test Prep - Page 975: 9
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