Presence of xylem vessels is a characteristic feature of

Options

A. Thallophytes
B. Pteridophytes
C. Gymnosperms
D. Angiosperms

Answer

To determine the answer to the question regarding the presence of xylem vessels, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Xylem Vessels**:
- Xylem vessels are specialized structures in plants that are responsible for the conduction of water and minerals from the roots to other parts of the plant, primarily the leaves and stems.

2. **Identifying Plant Groups**:
- We need to analyze the options provided: thalophytes, pteridophytes, gymnosperms, and angiosperms.
- **Thalophytes**: These are non-vascular plants, which means they do not have xylem or phloem. Therefore, xylem vessels are absent in thalophytes.
- **Pteridophytes**: These are vascular plants, but they primarily have xylem tracheids instead of xylem vessels. Thus, while they do have xylem, they do not have true xylem vessels.
- **Gymnosperms**: These plants do have xylem, but they mainly contain tracheids and not the true xylem vessels that are found in angiosperms.
- **Angiosperms**: These are flowering plants that possess both xylem vessels and tracheids. The presence of xylem vessels is a defining characteristic of angiosperms.

3. **Conclusion**:
- Based on the analysis, the presence of xylem vessels is a characteristic feature of **angiosperms**.

### Final Answer:
The presence of xylem vessels is a characteristic feature of **angiosperms**.