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Butoxors [25]
3 years ago
13

Red blood cells are produced by _____. bone marrow joints ligaments the skin

Biology
2 answers:
Usimov [2.4K]3 years ago
8 0
That's bone marrow. Hoped I helped. 
Andre45 [30]3 years ago
7 0

Answer:

bone marrow???

Explanation:

Hope this helps :p

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