Vessels and Companion cells are characteristics of

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Terms:**
- Vessels: These are part of the xylem tissue in plants and are responsible for the conduction of water and minerals from the roots to the rest of the plant.
- Companion Cells: These are specialized cells in the phloem that assist in the transport of nutrients and are closely associated with sieve tube elements.

2. **Analyzing the Options:**
- **Thalophytes:** These are simple plants that do not have a well-developed vascular system. They lack true leaves, stems, and roots. Therefore, they do not possess vessels or companion cells.
- **Bryophytes:** These are non-vascular plants that require water for reproduction. They also do not have vessels or companion cells.
- **Pteridophytes:** These plants are vascular and reproduce via spores. However, while they have vascular tissues, they do not have the specialized structures of vessels and companion cells found in angiosperms.
- **Angiosperms:** These are flowering plants that have a well-developed vascular system, including both vessels in the xylem and companion cells in the phloem.

3. **Conclusion:**
- Based on the analysis, vessels and companion cells are characteristic of **angiosperms** (flowering plants).

**Final Answer:** Vessels and Companion cells are characteristics of **Angiosperms**.

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