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On average, how many branchings occur in the adult human respiratory tree?

AAbout 14 branchings
BAbout 50 branchings
CAbout 23 branchings
DAbout 8 branchings
Answer & Solution
Correct answer: C. About 23 branchings
The human respiratory tree bifurcates approximately 23 times from the trachea down to the alveoli.
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