Pearl oyster belongs to class

Options

A. Mollusca
B. Bivalvia
C. Scaphopoda
D. Gastropoda

Answer

To determine the class to which the pearl oyster belongs, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Phylum**: The pearl oyster is part of the phylum Mollusca. This phylum is known for its soft-bodied organisms, many of which have calcareous shells.

2. **Understand the Classes of Mollusca**: Mollusca is divided into several classes, including:
- Gastropoda (snails and slugs)
- Bivalvia (clams, oysters, and scallops)
- Cephalopoda (squids and octopuses)
- Scaphopoda (tusk shells)

3. **Determine the Specific Class for Pearl Oysters**: The pearl oyster is specifically known for its two-part shell and is classified under the class Bivalvia. This class is characterized by organisms that have two shells (valves) hinged together.

4. **Confirm the Characteristics of Bivalvia**: Bivalves, including pearl oysters, are aquatic and primarily filter feeders. They have a soft body that is protected by their hard shells.

5. **Conclusion**: Since the pearl oyster fits the characteristics of the Bivalvia class, we conclude that the pearl oyster belongs to the class **Bivalvia**.

### Final Answer:
The pearl oyster belongs to class **Bivalvia**.

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