Respuesta :

Stem cells ; special cells produced by bone marrow (a spongy tissue found in the centre of some bones) that can turn into different types of blood cells.
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Answer:

Bones and  Fat

Explanation:

People donate bone marrow so that those in need can produce

For people battling multiple myeloma and other blood cancers, a successful bone marrow transplant can lead to remission or even complete cure.

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