Marine aquatic plants that produce hetero gametes is/are

Options

A. Funaria
B. Fucus
C. Cycas
D. All

Answer

To solve the question regarding marine aquatic plants that produce heterogametes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Heterogametes**:
- Heterogametes are distinct male and female gametes. This means that the male and female gametes can be identified separately.

2. **Identifying the Options**:
- The options provided are Funaria, Fucus, Cycus, and "all of the above".

3. **Analyzing Each Option**:
- **Funaria**: This is a moss and typically produces isogametes, where male and female gametes are not distinct.
- **Cycus**: This is a type of cycad and also produces isogametes, meaning the male and female gametes are not distinguishable.
- **Fucus**: This is a brown algae that produces heterogametes. In Fucus, the female gamete is larger than the male gamete, making them identifiable.

4. **Conclusion**:
- Based on the analysis, only Fucus produces heterogametes among the options provided. Therefore, the correct answer is **Fucus**.

### Final Answer:
The marine aquatic plant that produces heterogametes is **Fucus**.

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