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Each alveolar sac holds roughly how many alveoli?

A20 to 30
B60 to 70
C80 to 90
D40 to 50
Answer & Solution
Correct answer: A. 20 to 30
1. The sacs look like bunches of grapes. 2. Each grape is one alveolus. 3. There are about 20 to 30. _Source: OpenStax Biology 2e, Chapter 39, The Respiratory System._
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