Female ascaris can be differentiated from male by

Options

A. Presence of cloaca
B. Presence of penial setaae
C. shorter size
D. longer than male and straight posterior end

Explanation

To differentiate female Ascaris from male Ascaris, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**: Start by examining the anatomical features of both male and female Ascaris. Key structures to look for include the tail shape, size, and reproductive structures.

2. **Tail Shape**: Observe the tail of both sexes. The male Ascaris has a curved tail, while the female Ascaris has a straight and elongated tail. This is a primary distinguishing feature.

3. **Body Size**: Compare the overall body size of the two. The female Ascaris is generally longer than the male Ascaris, which is another distinguishing characteristic.

4. **Reproductive Structures**: Look for specific reproductive features. The female Ascaris has a structure called the vulva, which is not present in males. In contrast, males have cloacal apertures and a pair of spicules (pineal CT) that are absent in females.

5. **Conclusion**: Based on the observations, the female Ascaris can be differentiated from the male by its longer body size and straight tail.

### Final Answer:
The female Ascaris can be differentiated from the male by its longer body size and straight posterior tail.

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