In ferns there is self fertilization.

Answer

### Step-by-Step Solution:

1. **Understanding the Statement**: The question states that in ferns there is self-fertilization. We need to determine whether this statement is true or false.

2. **Classification of Ferns**: Ferns belong to a group of plants known as Pteridophytes. It is important to recognize that Pteridophytes are generally characterized by their reproductive processes.

3. **Reproductive Structures**: In ferns, there are two distinct reproductive structures:
- **Antheridium**: This structure produces male gametes (sperm).
- **Archegonium**: This structure produces female gametes (eggs).

4. **Fertilization Process**: In ferns, fertilization occurs through a process known as cross-fertilization. This means that the male gametes from one plant fertilize the female gametes of another plant.

5. **Role of Water**: The male gametes produced in the antheridium are motile (capable of swimming) and require water to reach the archegonium. This swimming ability allows the male gametes to travel to the female gametes for fertilization.

6. **Conclusion**: Since the fertilization in ferns involves the fusion of male and female gametes from different plants, the statement that ferns undergo self-fertilization is false. Therefore, we conclude that the statement is incorrect.

### Final Answer:
The statement "In ferns there is self-fertilization" is **false**.

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