Question

Which is involved in red blood cell production?
lungs
bones
liver
heart

Answer 1

@mikaylabean

Answer 2

Lungs carry oxygen which is crucial in making red blood cells, though I'm not sure if that's the question, that is what I would guess.

Answer 3

i think its bones cuz red blood cells form in bone marrow. but idk ha

Answer 4

That is true, and would make more sense. Red blood cells are formed from the same cells inside of a bone. That may be a better answer. I would pick it!

Answer 5

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