The member of phaeophyceae or brown algae are found primarily in/on

Options

A. marine habitats
B. terrestrial habitats
C. fresh water habitats
D. both fresh water and marine habitats

Answer

**Step-by-Step Solution:**

1. **Identify the Group**: The question asks about the members of Phaeophyceae, commonly known as brown algae.

2. **Understand Habitat Preferences**: Brown algae are primarily aquatic organisms. We need to determine their preferred habitats.

3. **Analyze the Options**:
- **Marine Habitats**: This option suggests that brown algae are found in oceanic environments.
- **Terrestrial Habitats**: This option implies that brown algae grow on land.
- **Freshwater Habitats**: This option suggests that brown algae can be found in freshwater bodies like lakes and rivers.
- **Both Freshwater and Marine Habitats**: This option indicates that brown algae can thrive in both types of water.

4. **Evaluate Each Option**:
- **Marine Habitats**: Most species of brown algae are indeed found in marine environments. This is the primary habitat for the majority of brown algae.
- **Terrestrial Habitats**: This option is incorrect because brown algae do not typically grow on land; they are primarily aquatic.
- **Freshwater Habitats**: While some algae can be found in freshwater, brown algae are not predominantly found in these environments.
- **Both Freshwater and Marine Habitats**: This is also incorrect for brown algae, as they are not commonly found in freshwater.

5. **Conclusion**: The correct answer is that members of Phaeophyceae, or brown algae, are primarily found in marine habitats.

**Final Answer**: Marine habitats.

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