Laminaria and Fucus belong to class

Options

A. Phaeophyceae
B. Chlorophyceae
C. Rhodophyceae
D. Cyanophyceae

Answer

**Step-by-Step Solution:**

1. **Identify the Organisms**: The question asks about Laminaria and Fucus. Both of these are types of algae.

2. **Classify Algae**: Algae are classified into different classes based on their characteristics. The main classes of algae are:
- Chlorophyceae (Green Algae)
- Rhodophyceae (Red Algae)
- Pheophyceae (Brown Algae)

3. **Determine the Class of Laminaria and Fucus**:
- Laminaria and Fucus are specifically known as brown algae.
- They contain chlorophyll A and C, and their brown color is due to the pigment fucoxanthin.

4. **Conclusion**: Since both Laminaria and Fucus belong to the group of brown algae, they are classified under the class Pheophyceae.

5. **Final Answer**: Therefore, the correct answer is that Laminaria and Fucus belong to the class Pheophyceae.

---