In Earthworm, ovary is situated in segment

Options

A. 13
B. 9
C. 10
D. 26

Answer

**Step-by-Step Solution:**

1. **Identify the Organ and Its Location**: The question asks about the location of the ovary in an earthworm. The scientific name for the earthworm is Lumbricus terrestris.

2. **Segment Identification**: In earthworms, the body is segmented, and various reproductive organs are located in specific segments.

3. **Locate the Ovary**: The ovaries in earthworms are found in the 13th segment. There are two small white ovaries, which are located on either side of the ventral nerve cord.

4. **Description of the Ovary**: The ovaries are whitish and have finger-like lobules where the ova (eggs) are arranged in various stages of development.

5. **Oviducts**: Each ovary has an oviductal funnel located immediately behind it, leading to a short oviduct. These oviducts run backward and open to the exterior through the female genital aperture.

6. **Conclusion**: Based on the information, the correct answer to the question is that the ovary is situated in the 13th segment of the earthworm.

**Final Answer**: The ovary in an earthworm is situated in segment 13.

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