Write True/False:
In Vallisneria the pollinating agent is water.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks whether the statement "In Vallisneria the pollinating agent is water" is true or false.

2. **Identifying the Pollination Type**: Vallisneria is a type of aquatic plant. It is known to utilize water as a means for pollination.

3. **Characteristics of Water Pollination**: Water pollination, also known as hydrophily, involves specific adaptations. One key characteristic is that the pollen grains of water-pollinated plants often have a mucilage covering, which helps them to remain buoyant in water.

4. **Confirming Vallisneria's Pollination Mechanism**: Vallisneria is indeed an example of a plant that uses water as its pollinating agent. This confirms that the statement in question is accurate.

5. **Conclusion**: Based on the information gathered, the statement "In Vallisneria the pollinating agent is water" is true.

**Final Answer**: True

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