Tuna fish and sword fish are :

Options

A. Regulators
B. Conformers
C. Migrators
D. More than one option

Answer

To answer the question regarding tuna fish and swordfish, we will analyze the characteristics of these fish in relation to the given options: regulator, conformer, and migrator.

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Conformers**: These organisms cannot regulate their internal environment and their body functions are directly influenced by external environmental conditions.
- **Regulators**: These organisms can maintain their internal environment regardless of external conditions. They have mechanisms to control their body functions.
- **Migrators**: These organisms move from one place to another, often in search of food, breeding grounds, or favorable environmental conditions.

2. **Characteristics of Tuna Fish**:
- Tuna fish are known for their ability to maintain a stable internal environment despite changes in the surrounding water temperature. This indicates that they are **regulators**.
- Additionally, tuna are known to migrate over long distances for spawning and feeding, which classifies them as **migrators** as well.

3. **Characteristics of Swordfish**:
- Swordfish also have the ability to regulate their body temperature and maintain homeostasis, which makes them **regulators**.
- Like tuna, swordfish are also known to migrate, particularly to warmer waters during certain seasons, indicating they are **migrators** too.

4. **Conclusion**:
- Both tuna fish and swordfish exhibit characteristics of being **regulators** because they can control their internal environment.
- They are also **migrators** as they move from one habitat to another based on environmental conditions and food availability.
- Therefore, the correct answer is that tuna fish and swordfish are both **regulators and migrators**.

### Final Answer:
Tuna fish and swordfish are **regulators and migrators**.

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