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Write a set of directions for a red blood cell to deliver oxygen to the brain. Include all the words in the word bank.

lungs,heart,brain,aorta,arteries,veins

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(help me never mind)

User Solefald
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2 Answers

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brains, lungs, and heart?
User Entalpi
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Brain , lungs , heart , arteries, veins , aorta ??
User Dan Bracuk
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