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Tardigrade
Question
Biology
In the given diagram of mechanism of breathing, what does A, B and C depict?
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Q. In the given diagram of mechanism of breathing, what does $A, B$ and $C$ depict?
Breathing and Exchange of Gases
A
(A) - Air goes inside to lungs, (B) -Ribs and sternum returned to original position, (C) - Diaphragm contracted
B
(A) - Air expelled from lungs, (B) - Ribs and sternum returned to original position, (C) - Diaphragm relaxed and arched upward
C
(A) - Air expelled from lungs, (B) - Ribs and sternum go upward, (C) - Diaphragm relaxed and arched upward
D
(A) - Air goes inside to lungs, (B) - Ribs and sternum go upward, (C) -Diaphragm relaxed and arched upward
Solution:
Correct answer is (b) (A) - Air expelled from lungs, (B) - Ribs and sternum returned to original position, (C) - Diaphragm relaxed and arched upward
