Chemoreceptor in Pila is ?

Options

A. Ctenidium
B. Radula
C. Osphradium
D. Statocyst

Answer

To answer the question "Chemoreceptor in Pila is?", we will analyze the options provided and determine which one correctly identifies the chemoreceptor in the organism Pila.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the specific chemoreceptor found in Pila, which is a genus of freshwater snails belonging to the class Gastropoda.

2. **Evaluating the Options**:
- **Option 1: Streenedium**: This is incorrect. Streenedium refers to a complex structure associated with respiratory organs and gills in mollusks, not a chemoreceptor.
- **Option 2: Radula**: This is also incorrect. The radula is a feeding organ in mollusks, used to scrape food, and is not involved in chemoreception.
- **Option 3: Osphradium**: This is the correct answer. The osphradium is a specialized chemoreceptor found in many mollusks, including Pila, that helps in detecting chemical substances in the water.
- **Option 4: Statosis**: This option is incorrect as well. The statosis is an organ involved in balance and orientation, not chemoreception.

3. **Conclusion**: After evaluating all the options, the correct answer is **Osphradium**, which serves as the chemoreceptor in Pila.

### Final Answer:
The chemoreceptor in Pila is **Osphradium**.