Dorsal pores of Earthworm do not occur in the region of

Options

A. First eleven and last annulus
B. 14 - 16 annuli
C. 100 - 110 annuli
D. 26 - 40 segments

Answer

To solve the question regarding the absence of dorsal pores in the Earthworm, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Dorsal Pores**: Dorsal pores are openings found on the dorsal side of the Earthworm. They are present in each segment of the worm and serve a specific function.

**Hint**: Recall the function of dorsal pores in the Earthworm and their significance.

2. **Function of Dorsal Pores**: The primary function of these dorsal pores is to release coelomic fluid, which helps in killing harmful bacteria. This is important for the Earthworm's health and defense.

**Hint**: Think about the role of coelomic fluid and why it is important for the Earthworm.

3. **Identifying the Regions**: The question asks in which region the dorsal pores do not occur. It is important to know where these pores are typically found.

**Hint**: Consider the anatomy of the Earthworm and the segments where dorsal pores are usually located.

4. **Analyzing the Segments**: Dorsal pores are present in most segments of the Earthworm, but they are specifically absent in the first 11 segments and the last segment (the last annulus).

**Hint**: Count the segments of the Earthworm and remember which ones lack dorsal pores.

5. **Conclusion**: Based on the analysis, the dorsal pores of the Earthworm do not occur in the first 11 segments and the last segment. Therefore, if the question provides options, the correct answer will be the one that indicates these segments.

**Hint**: Look for an option that mentions the first 11 segments or the last segment as the answer.

### Final Answer:
The dorsal pores of the Earthworm do not occur in the first 11 segments and the last annulus.