Biology, 20.08.2019 20:30, maqle

Which of the following best describes what alveoli are?
a. they are the smallest tubes in the respiratory system.
b. they have a small amount of surface area.
c. they are found on the end of bronchioles.
d. they are comprised of millions of cells.

Answers: 2

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Which of the following best describes what alveoli are?
a. they are the smallest tubes in the...