Give scientific reasons for the following statements:
Loss of nucleus and mitochondria make erythrocytes more efficient in their function.

Explanation

### Step-by-Step Solution:

1. **Definition of Erythrocytes**:
- Erythrocytes, commonly known as red blood cells (RBCs), are specialized cells in the blood responsible for transporting oxygen from the lungs to the rest of the body and returning carbon dioxide from the body back to the lungs.

2. **Loss of Nucleus**:
- Erythrocytes lose their nucleus during maturation. This loss allows for more space within the cell to accommodate hemoglobin, the protein that binds to oxygen.
- **Reason**: More hemoglobin means that each red blood cell can carry more oxygen, enhancing the efficiency of oxygen transport.
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