All sponges without any exception are

Options

A. Sessile
B. Aquaic
C. Asymmetric
D. Both (1) & (2)

Answer

To solve the question "All sponges without any exception are," we will analyze the characteristics of sponges and the options provided.

### Step-by-Step Solution:

1. **Understanding Sponges**:
- Sponges belong to the phylum Porifera. The term "Porifera" comes from the Latin word "porus," meaning pore, which indicates that sponges have numerous pores throughout their bodies.

2. **Identifying Characteristics**:
- Sponges are primarily aquatic organisms, meaning they live in water. They can be found in both marine and freshwater environments.
- They are sessile, which means they are fixed in one place and do not move. This is a key characteristic of sponges.

3. **Analyzing Symmetry**:
- Sponges exhibit various types of symmetry. While many sponges are asymmetric, some classes of sponges, such as those in the class Calcarea, can exhibit radial symmetry. Therefore, it is incorrect to state that all sponges are asymmetric.

4. **Evaluating the Options**:
- Option 1: Societal - This is incorrect as sponges do not form societies.
- Option 2: Aquatic - This is correct as all sponges are found in aquatic environments.
- Option 3: Asymmetric - This is partially correct, as not all sponges are asymmetric.
- Option 4: Both 1 and 2 - This is incorrect since option 1 is not true.

5. **Conclusion**:
- The correct answer is that all sponges without any exception are aquatic and sessile. Therefore, the best choice is option 4, which states that they are both aquatic and sessile.

### Final Answer:
All sponges without any exception are aquatic and sessile (Option 4).