In male Ascaris, anus is

Options

A. Absent
B. Replaced by gonopore
C. Replaced by cloaca
D. None of the above

Answer

To answer the question "In male Ascaris, anus is...", we will analyze the options provided and determine the correct answer step by step.

### Step-by-Step Solution:

1. **Understanding Ascaris Anatomy**:
- Ascaris is a genus of parasitic worms, commonly known as roundworms. Both male and female Ascaris have distinct anatomical features, including their reproductive and excretory systems.

2. **Evaluating Option 1 - Anus is Absent**:
- This option states that the anus is absent in male Ascaris. This is incorrect because both male and female Ascaris possess an anus.

3. **Evaluating Option 2 - Anus is Replaced by Gonopore**:
- This option suggests that the anus in male Ascaris is replaced by a gonopore. However, this is not true for males; the gonopore is a feature of female Ascaris, where the anus is replaced by the gonopore for reproductive purposes.

4. **Evaluating Option 3 - Anus is Replaced by Cloaca**:
- This option claims that the anus in male Ascaris is replaced by a cloaca. This is the correct answer. In male Ascaris, the cloaca serves as a common opening for the excretory and reproductive systems, and it plays a role in copulation.

5. **Evaluating Option 4 - None of the Above**:
- This option would imply that none of the previous statements are correct. However, since we have identified that option 3 is correct, this option is not valid.

### Conclusion:
The correct answer to the question "In male Ascaris, anus is..." is **Option 3: replaced by cloaca**.

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