Answer:
True
Explanation:
The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.
Answer:
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Answer:
Double blind study
Explanation:
A double-blind investigation is one in which neither the members nor the one performing the experiments realize who is getting a specific treatment.
This method is used to counteract inclination in research results.
Double blind examinations are especially helpful for anticipating predisposition because of interest qualities or the placebo impact.
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Cardiovascular disease would be the most likely as the oxygen taken in is polluted and enters the blood stream. Thus as it travels to the heart and throughout your body you risk disease.
