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AU BUT one describes an effect of aging on the respiratory system.

es 0)
A)
diminished lung volume capacity
B)
increased respiratory mucus production
decreases in respiratory muscle strength
D)
oxygen content of arterial blood decreases

User Lwiseman
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1 Answer

16 votes
16 votes
i am pretty sure it is a:) you got this
User IShubhamPrakash
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