Plants lacking seed and vascular tissue but forming spores and embryo are

Options

A. bryophytes
B. pteridophytes
C. angiosperms
D. gymnosperms

Answer

To solve the question "Plants lacking seed and vascular tissue but forming spores and embryo are," we will analyze the options provided and determine which one fits the criteria given in the question.

### Step-by-Step Solution:

1. **Understanding the Criteria**:
- The plants in question must lack seeds.
- They must also lack vascular tissue.
- They should be capable of forming spores and embryos.

2. **Analyzing the Options**:
- **Bryophytes**:
- Bryophytes are non-vascular plants.
- They reproduce via spores.
- They do not produce seeds.
- They can form embryos during their life cycle.
- **Conclusion**: Bryophytes fit all the criteria.

- **Pteridophytes**:
- Pteridophytes are vascular plants.
- They reproduce via spores.
- They do not produce seeds.
- However, they have vascular tissue (xylem and phloem).
- **Conclusion**: Pteridophytes do not fit the criteria because they have vascular tissue.

- **Angiosperms**:
- Angiosperms are flowering plants.
- They produce seeds and have vascular tissue.
- They do not fit the criteria as they have both seeds and vascular tissue.
- **Conclusion**: Angiosperms do not fit the criteria.

- **Gymnosperms**:
- Gymnosperms are seed-producing plants.
- They have vascular tissue.
- They do not fit the criteria as they produce seeds and have vascular tissue.
- **Conclusion**: Gymnosperms do not fit the criteria.

3. **Final Conclusion**:
- The only group of plants that meets all the specified criteria (lacking seeds and vascular tissue while forming spores and embryos) is **Bryophytes**.

### Answer:
The correct answer is **Bryophytes**.