Abdomen of Cockroach has segments

Options

A. 6
B. 10
C. 11
D. 12

Answer

To determine how many segments are present in the abdomen of a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Classification of Cockroach**:
- Cockroaches belong to the phylum Arthropoda. This is important as it helps us understand the general characteristics of their body structure.

2. **Understand the Body Structure**:
- The body of a cockroach is divided into three major parts: the head, thorax, and abdomen. This segmentation is a characteristic feature of arthropods.

3. **Focus on the Abdomen**:
- The question specifically asks about the abdomen of the cockroach. We need to determine how many segments are present in this part of the body.

4. **Count the Segments**:
- The abdomen of a cockroach consists of **10 segments**. This is a key fact that directly answers the question.

5. **Additional Information**:
- The seventh segment of the abdomen joins with the eighth and ninth segments to form the sterna, which are associated with the brood or genital organs, especially in females.
- The tenth segment has a pair of jointed filamentous structures known as annulus archaei, which are present in both male and female cockroaches.

6. **Conclusion**:
- Based on the information gathered, the correct answer to the question is that the abdomen of a cockroach has **10 segments**.

### Final Answer:
The abdomen of a cockroach has **10 segments**.

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