Medullary cavities
Bone marrow is the soft, spongy tissue that is located in the medullary cavities (centers) of certain large bones. Healthy bone marrow is an essential part of the body, as it contains stem cells that produce blood cells and the cells that make up the immune system.
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There are two ways hospitals do this:
Explanation:
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Answer:
Some mature hair, skin, and nail cells don't have any DNA either. The DNA isn't just floating around in the cell. Most of it is stored in a small compartment in the cell called the nucleus. A small bit of it can also be found in another compartment called the mitochondrion.
Explanation:
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c. inner cell mass
Explanation:
The inner cell mass of the blastocyst forms the embryo while the outer layer, the trophoblast forms the placenta.
