The advantage of hermaphroditism to Hirudo is

Options

A. To produce double population
B. To decrease population
C. To increase population
D. None

Answer

### Step-by-Step Solution:

1. **Understanding Hirudo**:
- Hirudo is a genus of leeches, specifically known as freshwater leeches. They have a segmented body structure.

2. **Defining Hermaphroditism**:
- Hermaphroditism refers to the condition where an organism possesses both male and female reproductive organs. This allows the organism to produce both male and female gametes.

3. **Advantages of Hermaphroditism**:
- In hermaphroditic organisms like Hirudo, the presence of both male and female gametes in the same individual simplifies the process of reproduction.
- It reduces the chances of gamete loss during fertilization because the organism can fertilize itself or another individual without needing to find a mate of the opposite sex.

4. **Population Implications**:
- The ability to produce both types of gametes leads to a higher likelihood of successful reproduction, which can result in an increase in population.
- Specifically, since each individual can potentially contribute to the population growth, this can lead to a doubling of the population.

5. **Evaluating the Options**:
- The options provided are:
- A) To produce double population
- B) To decrease population
- C) To increase population
- D) None
- The most accurate answer is option A, "to produce double population," as it specifically highlights the advantage of hermaphroditism in terms of population growth.

### Final Answer:
The advantage of hermaphroditism to Hirudo is **to produce double population**.

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