The total number of testes and their location in earthworm respectively are 

Options

A. `2, 10  & 11^(th)` segments
B. `4, 10 & 11^(th)` segments
C. 2 pairs & `11^(th) & 12^(th)` segments
D. 4 pairs in `11^(th) & 12^(th)` segments

Answer

To answer the question about the total number of testes and their location in earthworms, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Earthworm Anatomy**:
- Earthworms are hermaphrodites, meaning they possess both male and female reproductive organs. This includes both testes and ovaries within the same individual.

2. **Identifying the Number of Testes**:
- In earthworms, there are a total of **two pairs of testes**. This means there are four testes in total.

3. **Locating the Testes**:
- The testes are located in specific segments of the earthworm's body. In earthworms, the testes are found in the **10th and 11th segments**.

4. **Selecting the Correct Option**:
- Based on the information gathered, the correct answer to the question is that there are **two pairs of testes located in the 10th and 11th segments** of the earthworm.

### Final Answer:
The total number of testes in earthworms is **two pairs**, and their location is in the **10th and 11th segments**.

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