In earthworm spermathecal sperture are sitated on the ventro-lateral sides of intersegmental grooves of

Options

A. 4th of 9th segments
B. `(5)/(6),(6)/(7),(7)/(8),(8)/(9)`
C. 6th, 7th, 8th and 9th segments
D. both 1 and 2 are correct

Explanation

**Step-by-Step Solution:**

1. **Understanding the Earthworm Anatomy**:
- Earthworms belong to the phylum Annelida and have a segmented body structure. Each segment has specific features and functions.

2. **Identifying the Spermathecal Apertures**:
- Spermathecal apertures are openings that receive and store sperm during copulation. They are crucial for reproduction in earthworms.

3. **Locating the Intersegmental Grooves**:
- The body of the earthworm is divided into segments, and the intersegmental grooves are the indentations that separate these segments.

4. **Determining the Position of the Spermathecal Apertures**:
- The spermathecal apertures are located on the ventro-lateral sides of the intersegmental grooves.

5. **Identifying the Specific Segments**:
- The question provides options regarding the segments where these apertures are located. The correct segments for the spermathecal apertures are between segments 5 and 6, 6 and 7, 7 and 8, and 8 and 9.

6. **Conclusion**:
- Therefore, the correct answer is that the spermathecal apertures are situated on the ventro-lateral sides of the intersegmental grooves between segments 5-6, 6-7, 7-8, and 8-9.

**Final Answer**: The spermathecal apertures in earthworms are located on the ventro-lateral sides of the intersegmental grooves between segments 5-6, 6-7, 7-8, and 8-9.

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