In silkworm, silk is the product of,

Options

A. cuticle of the larva
B. cuticle of the adult
C. salivarly galnd of the larva
D. salivary gland of the adult

Explanation

**Step-by-Step Solution:**

1. **Understanding the Silkworm**: The term "silkworm" refers to the larval stage of the silk-producing moth. This is crucial because it indicates that the silk is produced during this stage of the insect's life cycle.

2. **Identifying the Silk Source**: In silkworms, silk is produced by specialized glands. The question provides options related to different parts of the silkworm's anatomy.

3. **Analyzing the Options**:
- **Cuticle of larvae**: The cuticle is the outer covering and does not produce silk.
- **Cuticle of adult**: Similar to the larvae, the adult's cuticle does not produce silk.
- **Salivary gland of larvae**: This is a potential answer since silk is produced by glands.
- **Salivary gland of adult**: While adults have salivary glands, they do not produce silk.

4. **Conclusion**: The silk in silkworms is produced by the modified salivary glands of the larvae. Therefore, the correct answer is the **salivary gland of larvae**.

**Final Answer**: The silk in silkworm is produced by the **salivary gland of larvae**.

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