The flagellated larva of leucosolenia is know as

Options

A. planula
B. parenchymula
C. hydrula
D. amphiblastula

Answer

To answer the question about the flagellated larva of Leucosolenia, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: Leucosolenia is a genus of sponges that belongs to the phylum Porifera.

2. **Understand the Type of Larva**: The larva of Leucosolenia is flagellated, which means it has flagella that aid in locomotion.

3. **Review the Options**: The options provided are:
- Planula
- Parenchymula
- Hydrula
- Amphiblastula

4. **Analyze Each Option**:
- **Planula**: This is the larva of organisms in the phylum Cnidaria, not Porifera.
- **Parenchymula**: This is a type of flagellated larva found specifically in sponges, including Leucosolenia.
- **Hydrula**: This is associated with Hydra, which is also a Cnidarian and not related to Leucosolenia.
- **Amphiblastula**: This larva is found in some sponges, but not specifically in Leucosolenia.

5. **Conclude the Correct Answer**: Since Parenchymula is a flagellated larva found in Leucosolenia, the correct answer is **Parenchymula**.

### Final Answer:
The flagellated larva of Leucosolenia is known as **Parenchymula**.

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