Neural system is better organised in the following

Options

A. Freshwater polyp
B. Bath sponge
C. Silver fish
D. Sea anemone

Answer

To determine which organism has a better-organized neural system among the given options, we can analyze each organism's nervous system structure.

### Step-by-Step Solution:

1. **Identify the Organisms**: The options provided are Freshwater polyp (Hydra), Bath Sponger, Silverfish, and Sea Animal.

2. **Analyze the Freshwater Polyp (Hydra)**:
- The Freshwater polyp has a simple nervous system.
- It consists of a nerve net, which is a decentralized network of neurons.
- This indicates a basic level of organization.

3. **Analyze the Bath Sponger**:
- Bath Spongers do not possess a nervous system at all.
- They lack specialized nerve cells and any form of neural organization.

4. **Analyze the Silverfish**:
- Silverfish are classified as insects.
- They have a more complex nervous system compared to the previous two organisms.
- Their nervous system includes a dorsal brain and ventral ganglia, indicating a higher level of organization.

5. **Analyze the Sea Animal**:
- Similar to Bath Spongers, Sea Animals do not have a nervous system.
- They also lack any specialized neural structures.

6. **Conclusion**:
- Comparing the nervous systems of all four organisms, the Silverfish has the most organized and complex nervous system.
- Therefore, the answer to the question "Neural system is better organized in the following" is **Silverfish**.

### Final Answer:
**Option C: Silverfish**