EASY
Biology
IMPORTANT
Earn 100

Read the following statements.
A. It is double-layered and covers the lungs.
B. Outer layer is in contact with the thoracic wall.
C. Fluid is present between these layers.
D. Inner layer is in contact with the lungs.
The above features refer to:

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Important Questions on Breathing and Exchange of Gases

EASY
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IMPORTANT
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IMPORTANT
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IMPORTANT
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IMPORTANT
_____ is the site of actual diffusion of O2 and CO2
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IMPORTANT
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IMPORTANT
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IMPORTANT
The chambers formed dorsally by the vertebral column, ventrally by sternum, laterally by ribs and on the lower side by dome-shaped diaphragm is called