Which one of the following fishes is named after sky and clouds broken into white parallel masses?

Options

A. Exocoetus
B. Gambusia
C. Mackerel
D. Salmon

Answer

To answer the question "Which one of the following fishes is named after the sky and clouds broken into white parallel masses?", we can follow these steps:

### Step 1: Identify the Fish
The question specifically asks for a fish that is named after the sky and clouds. The fish that fits this description is the **mackerel**.

### Step 2: Understand the Name Origin
The name "mackerel" is derived from the appearance of the fish, which resembles the sky and clouds broken into white parallel masses. This is a descriptive naming based on its physical characteristics.

### Step 3: Classify the Fish
Mackerel belongs to the class **Osteichthyes**, which is known as the bony fishes. This classification is important as it helps us understand the biological characteristics of the fish.

### Step 4: Characteristics of Mackerel
- **Mouth Structure**: Mackerel has a terminal mouth.
- **Gills**: It possesses four pairs of gills that are covered by an operculum.
- **Air Bladder**: Mackerel has an air bladder, which allows it to maintain buoyancy without continuous swimming.
- **Reproduction**: The fertilization in mackerel is external, and they are oviparous, meaning they lay eggs.

### Conclusion
Thus, the fish named after the sky and clouds broken into white parallel masses is the **mackerel**.

---