In dicot stem vessels are ................ .

Answer

**Step-by-Step Solution:**

1. **Understand What a Vessel Is:**
- A vessel is a long cylindrical tube-like structure found in plants. It is composed of multiple cells that work together to perform specific functions.

2. **Identify the Components of a Vessel:**
- The cells that make up a vessel are known as vessel elements. These elements are specialized for conducting water and minerals.

3. **Examine the Structure of Dicot Stem Vessels:**
- In dicot stems, the vessels have a distinct shape. They are characterized by their polygonal shape, which is a key feature of dicotyledonous plants.

4. **Recognize the Function of Vessels:**
- The primary functions of these vessels in dicot stems include the transport of water and minerals, as well as providing mechanical support to the plant structure.

5. **Conclude the Answer:**
- Therefore, the vessels in dicot stems are polygonal in shape.

**Final Answer:**
In dicot stem vessels are polygonal.

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