Which one belongs to gastropoda

Options

A. Clam
B. Mussel
C. Cuttle Fish
D. Snail.

Answer

To determine which organism belongs to the class Gastropoda, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Class Gastropoda**:
- Gastropoda is the largest class within the phylum Mollusca. It includes a diverse group of animals commonly known as snails and slugs.

2. **Identify the Options**:
- The question provides several options. We need to analyze each one to see if it belongs to Gastropoda.

3. **Analyze Each Option**:
- **Clam**: Clams belong to the class Bivalvia, which is distinct from Gastropoda. Therefore, clams do not belong to Gastropoda.
- **Mussel**: Similar to clams, mussels also belong to the class Bivalvia. Thus, mussels do not belong to Gastropoda.
- **Cuttlefish**: Cuttlefish belong to the class Cephalopoda, which is another separate class within Mollusca. Hence, cuttlefish do not belong to Gastropoda.
- **Snail**: Snails are the most recognized members of the class Gastropoda. They can be found in various environments including saltwater, freshwater, and on land.

4. **Conclusion**:
- Based on the analysis, the only organism that belongs to the class Gastropoda is the snail. Therefore, the correct answer is **snail**.

### Final Answer:
The organism that belongs to Gastropoda is **snail**.