Bryophytes comprise

Options

A. Dominant phase of gamet6ophyte which produces spores
B. Small sporophyte phase and generally parasitic on gametophyte
C. Sporophyte is of longer duration
D. Dominant phase ofsporophyte which is parasitic

Answer

### Step-by-Step Solution:

1. **Understanding Bryophytes**:
- Bryophytes are a group of plants that belong to the division Bryophyta. They are often referred to as the amphibians of the plant kingdom because they require both land and water for their life processes.

2. **Life Cycle of Bryophytes**:
- Bryophytes have a unique life cycle where the vegetative phase occurs on land, while the reproductive phase takes place in water. This dual requirement for water and land is what earns them the title of amphibians.

3. **Dominant Phase**:
- In Bryophytes, the dominant phase is the gametophyte phase. However, the sporophyte phase is also present but is usually smaller and dependent on the gametophyte for nutrition.

4. **Characteristics of Sporophyte**:
- The sporophyte in Bryophytes is typically parasitic on the gametophyte. This means that it derives its nutrients from the gametophyte, similar to how a parasite would.

5. **Evaluating the Options**:
- The question provides multiple-choice options regarding the characteristics of Bryophytes:
- **Option 1**: Dominant phase of gametophyte which produces spores - This is incorrect as the sporophyte is the dominant phase.
- **Option 2**: Small sporophyte phase and generally parasitic on gametophyte - This is partially correct but does not highlight the dominance of the sporophyte.
- **Option 3**: Sporophyte is of longer duration - This is incorrect as the sporophyte is not the longer-lasting phase.
- **Option 4**: Dominant phase of sporophyte which is parasitic - This is the correct answer as it accurately describes the sporophyte's role in Bryophytes.

6. **Conclusion**:
- Therefore, the correct answer to the question "Bryophytes comprise" is that they have a dominant sporophyte phase which is parasitic on the gametophyte.