Root, shoot or leaf, which area of plant has a quiescent centre.

Explanation

To determine which area of a plant has a quiescent center, we can analyze the three structures mentioned: root, shoot, and leaf.

### Step-by-Step Solution:

1. **Understanding Quiescent Center**:
- The quiescent center is a specific region in a plant where cells are either not dividing or are dividing very slowly. This allows the plant to conserve energy and resources, as these cells can remain inactive until needed for growth or repair.

2. **Identifying Plant Structures**:
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