English Language · English
According to the passage, the chest wall becomes stiff in old age because _______.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1the heart's ability to pump blood to it drops about one percent
- 2the blood flow to various organs decreases
- 3the resting heart-rate becomes high
- 4the person's ability to exhale sufficient air lessens✓
Correct answer
the person's ability to exhale sufficient air lessens
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