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pashok25 [27]
4 years ago
14

Asthma narrows airways to the lungs and in the lungs by contraction of muscles around the air passages, swelling of the airway l

ining, 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; digestive
C) respiratory; circulatory
Biology
1 answer:
Nikitich [7]4 years ago
4 0

Answer:

C) respiratory: Circulatory

Explanation:

Oxygen travels through the blood stream to muscles, and cells

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