Which of the following actually makes the silk fibres ?
Larva, Pupa, Adult silk moth

Answer

To determine which stage of the silk moth life cycle actually makes the silk fibers, we can analyze the life cycle of the silk moth step by step.

### Step-by-Step Solution:

1. **Understanding the Life Cycle of Silk Moths**:
- The life cycle of a silk moth consists of several stages: egg, larva (caterpillar), pupa (cocoon), and adult moth.

2. **Identifying Each Stage**:
- **Egg**: The initial stage where the silk moth begins its life.
- **Larva**: After hatching from the egg, the larva (caterpillar) feeds on leaves and grows.
- **Pupa**: The larva then enters the pupa stage, where it forms a protective cocoon around itself.
- **Adult Silk Moth**: After developing inside the cocoon, the adult moth emerges.

3. **Focus on the Pupa Stage**:
- The silk fibers are produced during the pupa stage when the larva transforms into a pupa and creates a cocoon made of silk threads.

4. **Conclusion**:
- The silk fibers are actually made by the pupa stage of the silk moth, as it is during this stage that the cocoon is formed from silk.

### Final Answer:
The silk fibers are made by the **Pupa**.

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