The respiratory system in the body of cockroach consists of -

Options

A. Bronchi
B. Bronchioles
C. Network of trachea
D. Haemocyanin

Answer

To answer the question about the respiratory system in the body of a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Respiratory System**: The respiratory system in cockroaches is specialized for their needs as insects. Unlike mammals, they do not have lungs.

2. **Identifying Key Components**: The main components of the cockroach's respiratory system include:
- Trachea: A network of tubes that transport air directly to the tissues.
- Spiracles: Small openings on the sides of the body that allow air to enter the tracheal system.

3. **Function of the Tracheal System**: The trachea branches into smaller tubes called tracheoles, which deliver oxygen directly to the cells and remove carbon dioxide.

4. **Examining the Options**:
- **Bronchi**: These are not present in cockroaches; they are found in mammals.
- **Bronchioles**: Similar to bronchi, these are also not part of the cockroach's respiratory system.
- **Network of Trachea**: This is the correct answer as it describes the main respiratory structure in cockroaches.
- **Hemocyanin**: This is a respiratory pigment found in some arthropods, but it is not a structural component of the respiratory system.

5. **Conclusion**: Based on the above analysis, the correct answer to the question is that the respiratory system in the body of a cockroach consists of a **network of trachea**.

### Final Answer:
The respiratory system in the body of a cockroach consists of a **network of trachea**.

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