evashstk evashstk

07-04-2021
Biology

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blood that is short of oxygen is often coloured blue on diagrams. Which blood vessels should be coloured blue, those that carry blood to the lungs or those that carry it back to the heart?

Respuesta :

19-04-2021

Answer:

to the lungs

Explanation:

it needs to be reoxygenated so it goes back into the lungs

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