Biology, 07.10.2019 23:40 raweber

People with heart problems often have trouble breathing.
why would this happen?
a. the pumping of the heart is tied to the respiratory system.
b. red blood cells are produced in the lungs.
c. the heart provides the lungs with oxygen.
d. the lungs are the organs that bring carbon dioxide into the body.

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People with heart problems often have trouble breathing.
why would this happen?
a. the...

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