Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question

1. What helps to maintain a concentration gradient between blood and the air in the alveolus?
A. The flow of blood through the lungs
B. The presence of haemoglobin in blood cells
C. The single-celled alveolar walls
D. The squamous epithelium of capillaries

Please solve fast max 15 minutes and no reject thank u

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