Eyes of pila/molluscs occur over

Options

A. Pseudopodia
B. Ommatophores
C. Cephalic tentacles
D. Both 2) and 3)

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the location of the eyes in Pila (apple snail), which is a type of mollusk. We need to determine whether the eyes occur over pseudopodia, cephalic tentacles, or both.

2. **Identifying the Classification**: Pila belongs to the phylum Mollusca and specifically to the class Gastropoda. This classification is important to understand the anatomical features of Pila.

3. **Anatomy of Pila**: In gastropods like Pila, the eyes are located on structures known as ocular tentacles or eye stalks. These are called omatophores, which are stalk-like structures that extend from the head region.

4. **Examining Other Options**:
- **Cephalic Tentacles**: These are found in cephalopods (another class of mollusks) and are used for capturing prey and defense. They are not where the eyes of Pila are located.
- **Pseudopodia**: This term refers to temporary projections of eukaryotic cells, primarily seen in protozoans like amoeba. Pseudopodia are not related to mollusks.

5. **Conclusion**: Based on the anatomical features of Pila, the eyes occur over the omatophores (eye stalks) and not over pseudopodia or cephalic tentacles. Therefore, the correct answer is that the eyes of Pila occur over the eye stalks.

**Final Answer**: The eyes of Pila (molluscs) occur over the omatophores (eye stalks).

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