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Whoever will answer fast will be marked brainliest
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Answer:
hi
Explanation:
here is your answer
Yes, since respiration takes place in cells too..
don't forget your promise ;)
Answer: No
Explanation:
When we hold out breath for long durations, oxygen levels decrease and carbon dioxide accumulates in the body. That changes the concentration of free hydrogen ions, which makes these cells more excitable, leading to abnormal functions. For most people, it's safe to hold your breath for a minute or two.