Syncytial epidermis occurs in

Options

A. Ascaris
B. Hydra
C. Taenia
D. Leucosolenia

Answer

To solve the question "Syncytial epidermis occurs in," we will analyze the provided options and determine which organism possesses a syncytial epidermis.

### Step-by-Step Solution:

1. **Understand the Term "Syncytial":**
- The term "syncytial" refers to a structure that is multinucleated, meaning it contains multiple nuclei within a single cell membrane. This is often found in certain types of tissues.

2. **Identify the Organisms in the Options:**
- The options given are:
- Ascaris
- Hydra
- Tenia (also known as Taenia)
- Leukosolenia

3. **Analyze Each Option:**
- **Ascaris:**
- Ascaris is a roundworm belonging to the phylum Nematoda (or Aschelminthes). It has a syncytial epidermis that covers its body. This epidermis is located beneath the longitudinal muscles and is characteristic of nematodes.
- **Hydra:**
- Hydra is a simple freshwater organism belonging to the phylum Cnidaria. It does not have a syncytial epidermis; instead, it has a simple epithelial layer.
- **Tenia (Taenia):**
- Taenia is a genus of tapeworms belonging to the phylum Platyhelminthes. It has a different type of body covering and does not possess a syncytial epidermis.
- **Leukosolenia:**
- Leukosolenia is a genus of sponges belonging to the phylum Porifera. Sponges do not have a syncytial epidermis; they have a cellular organization that is quite different from that of nematodes.

4. **Conclusion:**
- Based on the analysis, the organism that has a syncytial epidermis is **Ascaris**. Therefore, the correct answer to the question is Ascaris.

### Final Answer:
Syncytial epidermis occurs in **Ascaris**.