Bisexuall nematode from the following is

Options

A. Enterobius
B. Ascaris
C. Caenorhabditis
D. Ancylostoma

Answer

To determine the bisexual nematode from the given options, we will analyze each option based on their reproductive characteristics.

### Step-by-Step Solution:

1. **Understand Nematodes**: Nematodes, commonly known as roundworms, are a class of worms that can be either free-living or parasitic. They are bilaterally symmetrical and have tapered ends.

2. **Identify Reproductive Characteristics**: Most nematodes are hermaphroditic (bisexual), meaning they possess both male and female reproductive organs within the same individual. However, some nematodes are unisexual, where male and female reproductive organs are found in separate individuals.

3. **Analyze the Options**:
- **Enterobius**: This nematode is known to be unisexual, meaning it has separate male and female individuals.
- **Ascaris**: This is also a unisexual nematode, with distinct male and female organisms.
- **Cenoabditis**: This species is hermaphroditic, meaning it has both male and female reproductive organs in the same individual, making it bisexual.
- **Ancylostoma**: Similar to Enterobius and Ascaris, Ancylostoma is unisexual.

4. **Conclusion**: Among the provided options, the only bisexual nematode is **Cenoabditis**.

### Final Answer:
The bisexual nematode from the following options is **Cenoabditis**.

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