Question

Blood that enters the left side of the heart has just left the lungs and contains ___ to be delivered to the body’s cells.


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Answer 1

The missing word would be oxygen. The oxygenated blood will come back to the heart, from the lungs via the pulmonary veins which enter the left atrium

Answer 2

Answer:

The answer is oxygen

Step-by-step explanation:

I took the test and got this correct. Here were the options:

capillaries

oxygen

carbon dioxide

waste products