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Spirometry is a type of pulmonary function test (PFT), a noninvasive procedure that provides important information about how well the lungs are working. More specifically, it reveals how much air is moving through the lungs and how quickly as you breathe through a tube.
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homeostasis, that is what i think at least
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It looks like a large rock with a yellowish color, and there are multiple smaller rocks inside the outer core.
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B. The Universe may continue to expand
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all of it because it is weird
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