The number of thoracic segments in cockroach are

Answer

**Step-by-Step Solution:**

1. **Understand the Structure of the Cockroach:**
- The cockroach is an insect that has a segmented body structure. It is divided into three main parts: the head, thorax, and abdomen.

2. **Identify the Thoracic Segments:**
- The thorax of a cockroach consists of three distinct segments. These segments are:
- **Prothorax**: This is the first segment of the thorax.
- **Mesothorax**: This is the second segment of the thorax.
- **Metathorax**: This is the third segment of the thorax.

3. **Count the Thoracic Segments:**
- Since we have identified three segments (Prothorax, Mesothorax, and Metathorax), we can conclude that the total number of thoracic segments in a cockroach is three.

4. **Mention the Function of Thoracic Segments:**
- Each of these thoracic segments is associated with a pair of jointed legs, which are important for the locomotion of the cockroach.

5. **Final Answer:**
- Therefore, the number of thoracic segments in a cockroach is **three**.

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