Birds produce sound due to the presence of

Options

A. larynx
B. syrnix
C. trachea
D. vocal cord

Answer

To answer the question "Birds produce sound due to the presence of," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The possible options for sound production in birds are larynx, syrinx, trachea, and vocal cords.

2. **Understand the Function of Each Option**:
- **Larynx**: This is the organ responsible for sound production in mammals, including humans.
- **Trachea**: This is the airway that connects the throat to the lungs but does not produce sound itself.
- **Vocal Cords**: These are found in the larynx of mammals and are responsible for sound production through vibration when air passes through them.
- **Syrinx**: This is a specialized organ found in birds, located at the base of the trachea, specifically designed for sound production.

3. **Focus on the Syrinx**: The syrinx is unique to birds and allows them to produce a wide variety of sounds. It is a muscular organ that can contract and expand, allowing for different pitches and tones.

4. **Conclusion**: Based on the information, the correct answer to the question is that birds produce sound due to the presence of the **syrinx**.

### Final Answer:
Birds produce sound due to the presence of the **syrinx**.

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