Read the conditions carefully and write the answers to the questions that follow:
Conditions: A given animal is found in the coastal water of the tropical and temperate seas and possesses the following characteristics:
(a) The animal belongs to the group which depicts the tissue level of organisation.
(b) The body wall consists of two distinct layers of cells: the outer epidermis and the inner gastrodermis.
(c) The animal has a soft, gelatinous, saucer-like body bearing numerous tentacles at the margins.
(d) The animal has minute .fimbriae possessing abundant stinging cells (nematoblasts).
Based on the above information, identify the animal from the following options:

Options

A. The animal is a sponge
B. The animal is an annelid.
C. The animal is a mollusc.
D. The animal is a coelenterate.

Answer

To solve the question, we need to analyze the characteristics of the given animal step by step and identify which phylum it belongs to based on the provided conditions.

### Step-by-Step Solution:

1. **Identify the Level of Organization**:
- The first condition states that the animal belongs to a group that depicts the tissue level of organization.
- In the animal kingdom, the phylum that exhibits tissue-level organization is **Cnidaria** (also known as Coelenterata).

**Hint**: Look for animals that have a tissue level of organization, which typically includes those in the phylum Cnidaria.

2. **Body Wall Structure**:
- The second condition mentions that the body wall consists of two distinct layers of cells: an outer epidermis and an inner gastrodermis.
- This characteristic is typical of **Cnidarians**, confirming our identification from the first step.

**Hint**: Remember that Cnidarians have two tissue layers, unlike Porifera, which have a cellular level organization.

3. **Body Shape and Tentacles**:
- The third condition describes the animal as having a soft, gelatinous, saucer-like body with numerous tentacles at the margins.
- This description fits well with jellyfish, which are also classified under Cnidaria.

**Hint**: Think about animals with a jelly-like body and tentacles; this is a common feature of Cnidarians.

4. **Presence of Stinging Cells**:
- The fourth condition states that the animal has minute fimbriae with abundant stinging cells (nematoblasts).
- Nematoblasts (or nematocysts) are specialized cells found in Cnidarians that are used for stinging and capturing prey.

**Hint**: Stinging cells are a key feature of Cnidarians; if you see this characteristic, it strongly indicates the animal belongs to this phylum.

5. **Conclusion**:
- Based on all the characteristics provided, the animal can be identified as belonging to the phylum **Cnidaria**.
- Therefore, the correct answer to the question is **Cnidaria**.

### Final Answer:
The animal is classified under the phylum **Cnidaria**.

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