Which part of bone is specialized to form blood cell?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which part of the bone is specialized for the formation of blood cells.

2. **Identifying the Relevant Bone Structure**: The part of the bone responsible for producing blood cells is known as the bone marrow.

3. **Types of Bone Marrow**: There are two types of bone marrow: red bone marrow and yellow bone marrow. The red bone marrow is specifically involved in the production of blood cells.

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