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2. What is made inside of bones that is carried throughout the circulatory system?

Respuesta :

midiot662

Answer:

oxygen, calcium or iron

Answer:

Bone Marrow

Explanation:

The inside of your bones is filled with a soft tissue called marrow. There are two types of bone marrow: red and yellow. Redbone marrow is where all new red blood cells, white blood cells, and platelets are made.

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