Vessels are found in

Options

A. All pteridophya
B. All angiosperms
C. Some gymnosperms
D. Both 1 and 2

Answer

To answer the question "Vessels are found in which of these options?", we will analyze the options provided and determine where vessels are present.

### Step-by-Step Solution:

1. **Understanding Vessels**:
- Vessels are specialized structures found in the xylem of vascular plants. They are responsible for the conduction of water and minerals from the roots to the rest of the plant.

2. **Analyzing Pteridophyta**:
- Pteridophytes, such as ferns, do not have vessels in their xylem. Instead, they primarily contain tracheids for water conduction. Therefore, vessels are not found in pteridophytes.

3. **Analyzing Angiosperms**:
- Angiosperms, or flowering plants, possess vessels in their xylem. These vessels are a key characteristic of angiosperms, allowing for efficient water transport. Thus, vessels are present in all angiosperms.

4. **Analyzing Gymnosperms**:
- Gymnosperms, which include conifers, typically do not have vessels. They mainly have tracheids. However, there is one group within gymnosperms called Gnetophytes that do possess vessels. Therefore, vessels are found in some gymnosperms but not in all.

5. **Conclusion**:
- Based on the analysis, vessels are found in all angiosperms and in some gymnosperms (specifically the Gnetophytes). Therefore, the correct answer to the question is "both 1 and 2" (meaning all angiosperms and some gymnosperms).

### Final Answer:
Vessels are found in all angiosperms and some gymnosperms.

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