The cuticle of Ascaris is secreted by

Options

A. Muscular layer
B. Epidermis
C. Basement membrane
D. None of the above

Answer

To answer the question "The cuticle of Ascaris is secreted by," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: The organism in question is Ascaris lumbricoides, which is a type of roundworm belonging to the phylum Aschelminthes.

2. **Understand the Structure of Ascaris**: Ascaris has a protective outer layer known as the cuticle. This cuticle is crucial for maintaining the shape and integrity of the worm's body.

3. **Determine the Source of the Cuticle**: The cuticle is made up of a collagenous extracellular matrix. It is synthesized by a specific layer of cells.

4. **Identify the Layer Responsible for Secretion**: The layer responsible for the secretion of the cuticle is the epidermis. This layer is also referred to as the hypodermis and is an ectodermal layer.

5. **Final Answer**: Therefore, the cuticle of Ascaris is secreted by the epidermis.

### Conclusion:
The correct option is **option 2: Epidermis**.

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