How many among the following are members of rhodophyceae and phaeophyceae, respectively?[Fucus, Ulothrix, Spirullina, Gelidium, Chalmydomonas nivalis, Porphyra, Chlorella, Polysiphonia Sargassum, Laminaria, Ectocarpus, Gracilaria.]

Options

A. 5,4
B. 3,5
C. 4,5
D. 4,4

Answer

To solve the question of how many members belong to Rhodophyceae (red algae) and Phaeophyceae (brown algae) from the given list, we will categorize each member accordingly.

### Step-by-Step Solution:

1. **Identify the Members**: We have the following members to classify:
- Fucus
- Ulothrix
- Spirulina
- Gelidium
- Chlamydomonas nivalis
- Porphyra
- Chlorella
- Polysiphonia
- Sargassum
- Laminaria
- Ectocarpus
- Gracilaria

2. **Classify Each Member**:
- **Fucus**: This is a member of Phaeophyceae (brown algae).
- **Ulothrix**: This is a member of Chlorophyceae (green algae).
- **Spirulina**: This is a cyanobacteria (not classified as algae in this context).
- **Gelidium**: This is a member of Rhodophyceae (red algae).
- **Chlamydomonas nivalis**: This is a member of Chlorophyceae (green algae).
- **Porphyra**: This is a member of Rhodophyceae (red algae).
- **Chlorella**: This is a member of Chlorophyceae (green algae).
- **Polysiphonia**: This is a member of Rhodophyceae (red algae).
- **Sargassum**: This is a member of Phaeophyceae (brown algae).
- **Laminaria**: This is a member of Phaeophyceae (brown algae).
- **Ectocarpus**: This is a member of Phaeophyceae (brown algae).
- **Gracilaria**: This is a member of Rhodophyceae (red algae).

3. **Count the Members**:
- **Rhodophyceae Members**:
- Gelidium
- Porphyra
- Polysiphonia
- Gracilaria
- Total: 4 members
- **Phaeophyceae Members**:
- Fucus
- Sargassum
- Laminaria
- Ectocarpus
- Total: 4 members

4. **Final Answer**:
- The number of members of Rhodophyceae is 4.
- The number of members of Phaeophyceae is 4.

### Conclusion:
Thus, the answer is **4 members of Rhodophyceae and 4 members of Phaeophyceae**.