Dorsal and ventral fins of Anabas have

Options

A. Stiff rays
B. Soft rays
C. Stiff rays in anterior region and soft rays in posterior region
D. Soft rays in anterior region and stiff rays in posterior region

Answer

To answer the question about the dorsal and ventral fins of Anabas, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Fish**: Anabas is a freshwater fish commonly known as the climbing perch. It is known for its ability to breathe air and move out of water.

2. **Understand Fin Structure**: Fish fins are supported by fin rays, which can be classified as stiff or soft. These rays provide structural support and assist in movement.

3. **Examine Fin Characteristics**: Anabas has long and continuous fins. The structure of these fins varies along their length.

4. **Analyze the Anterior Region**: In the anterior (front) region of the dorsal and ventral fins of Anabas, the fin rays are stiff. This stiffness provides support and stability to the fins.

5. **Analyze the Posterior Region**: As we move towards the posterior (back) region of the fins, the rays become softer. This allows for more flexibility and movement.

6. **Conclusion**: Based on the observations, the dorsal and ventral fins of Anabas have stiff rays in the anterior region and soft rays in the posterior region.

7. **Final Answer**: Therefore, the correct answer to the question is option C: "stiff rays in the anterior region and soft rays in the posterior region."