A piece of wood having no vessels must be belonging to a. teak b. mango c. pine d. palm

Options

A. teak
B. mango
C. pine
D. palm

Explanation

To determine which piece of wood has no vessels, we need to understand the difference between angiosperms and gymnosperms.

### Step-by-Step Solution:

1. **Understand the Role of Vessels**:
- Vessels are a type of xylem tissue responsible for the transport of water and nutrients in plants. They are typically found in angiosperms (flowering plants).

2. **Identify the Types of Plants**:
- Angiosperms: These are flowering plants that have vessels. Examples include teak and mango.
- Gymnosperms: These are non-flowering plants that do not have vessels. An example is pine.

3. **Analyze the Options**:
- **Option A: Teak**: Teak is an angiosperm, so it has vessels.
- **Option B: Mango**: Mango is also an angiosperm, so it has vessels.
- **Option C: Pine**: Pine is a gymnosperm, which means it does not have vessels.
- **Option D: Palm**: Palm is an angiosperm, so it has vessels.

4. **Conclusion**:
- Since both teak, mango, and palm are angiosperms and possess vessels, the only option that does not have vessels is **Option C: Pine**.

### Final Answer:
The piece of wood having no vessels must belong to **c. pine**.

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