Which of the following statement is true about respiration?
1)During inhalation ribs move inward and diaphragm is raised.
2)Bronchioles increases surface area for exchange of gases
3)Heamoglobin has greater affinity for carbon dioxide than oxygen
4)During exhalation, ribs move inward and the diaphragm relaxes
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1
Answer:
4
Explanation:
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0
Answer:
100% sure (1),(2),(3) are correct about respiration.
Explanation:
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