Squid is also called Sea Arrow because of

Options

A. Triangular trunk
B. Pointed head
C. Lateral fins fused posteriorly
D. Lateral fins fused anteriorly

Answer

To answer the question "Squid is also called Sea Arrow because of," we will analyze the options provided and understand the characteristics of the squid that lead to this name.

### Step-by-Step Solution:

1. **Understanding the Squid's Classification**:
- The squid belongs to the phylum Mollusca and the class Cephalopoda. This classification is important as it helps us understand the general characteristics of squids.

2. **Identifying the Shape of the Squid**:
- Squids have a unique body shape that is tubular and streamlined. This shape is crucial for their swimming ability.

3. **Examining the Options**:
- The options given are:
- A) Triangular trunk
- B) Pointed head
- C) Lateral fins fused posteriorly
- D) Lateral fins fused anteriorly

4. **Analyzing the Features**:
- **Triangular trunk**: This does not accurately describe the squid's body shape.
- **Pointed head**: While squids do have a pointed head, this feature alone does not explain the name "Sea Arrow."
- **Lateral fins fused posteriorly**: This feature contributes to the streamlined shape of the squid, enhancing its swimming speed.
- **Lateral fins fused anteriorly**: This is not a characteristic of squids.

5. **Conclusion**:
- The name "Sea Arrow" is derived from the squid's streamlined body and the fact that its lateral fins are fused posteriorly, which allows it to swim with extreme speed. Therefore, the correct answer is **C) Lateral fins fused posteriorly**.

### Final Answer:
Squid is also called Sea Arrow because of **lateral fins fused posteriorly**.

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