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Asthma narrows airways to the lungs and in the lungs by contraction of muscles around the air passages, swelling of the airway lining, and build-up of excessive mucus. Because of this, asthma makes both the ___________ and ______________ systems work harder to deliver oxygen to the cells throughout the body.
A) respiratory; nervous
B) respiratory; muscular
Reactivate
C) respiratory; digestive
D) respiratory; circulatory


Sagot :

Answer:

D)respiratory; circulatory

Explanation:

The respiratory system moves air into the body and removes waste gasses. The circulatory system transports nutrients and oxygen into the body.

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