Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs.
A. 5 to 7 seconds
B. 3 to 5 seconds
C. 1 to 3 seconds
D. 7 to 9 seconds
B?
Nope.
Yes. A. A healthy adult at rest breathes 12 to 20 times a minute.
oh wow thanks Ms. Sue
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