Bath sponge is common name of -

Options

A. Spongilla
B. Euspongia
C. Euplectella
D. Leucosolenia

Answer

To determine the common name of the bath sponge, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The question provides several options to choose from. We need to evaluate each one to find out which corresponds to the common name "bath sponge."

2. **Evaluate the First Option - Spongilla**:
- Spongilla is known as a freshwater sponge.
- Therefore, this option is incorrect for the common name "bath sponge."

3. **Evaluate the Second Option - Usponchia**:
- Usponchia is indeed known as the bath sponge.
- This option is correct.

4. **Evaluate the Third Option - Euplactella**:
- Euplactella is commonly referred to as the Venus flower basket.
- Hence, this option is also incorrect for the common name "bath sponge."

5. **Evaluate the Fourth Option - Leucoselenia**:
- Leucoselenia is known as the calculus sponge.
- Therefore, this option is incorrect as well.

6. **Conclusion**: After evaluating all the options, we find that the correct answer is Usponchia, which is the common name for bath sponge.

### Final Answer:
The common name of bath sponge is **Usponchia**.

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