Find the odd one out with respect to the respiratory organ.

Options

A. Blue whale
B. Tadpole of frog
C. Bony fish
D. Shark

Answer

To solve the question of finding the odd one out with respect to the respiratory organ, we will analyze each option based on the type of respiratory organ they possess.

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Option 1: Blue Whale
- Option 2: Tadpole of Frog
- Option 3: Bony Fish
- Option 4: Shark

2. **Analyze the Respiratory Organs**:
- **Blue Whale**: Blue whales are mammals and they breathe air using lungs. They inhale fresh air into their lungs.
- **Tadpole of Frog**: Tadpoles are aquatic larvae of frogs and they respire through gills. As they mature into adult frogs, they develop lungs.
- **Bony Fish**: Bony fish, such as salmon or goldfish, respire through gills, which extract oxygen from water.
- **Shark**: Sharks are also fish and they breathe through gills, similar to bony fish.

3. **Compare the Respiratory Organs**:
- Blue Whale uses lungs (a respiratory organ typical of mammals).
- Tadpole, Bony Fish, and Shark all use gills (a respiratory organ typical of aquatic animals).

4. **Identify the Odd One Out**: Since Blue Whale is the only organism that uses lungs for respiration, while the others (Tadpole, Bony Fish, and Shark) use gills, Blue Whale is the odd one out.

### Conclusion:
The odd one out with respect to the respiratory organ is **Option 1: Blue Whale**.