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 can follow these steps:

### Step 1: Identify the Respiratory Organs of Each Organism
- **Blue Whale**: As a mammal, the blue whale has lungs for respiration.
- **Tadpole of Frog**: In its tadpole stage, it lives in water and has gills for respiration.
- **Bony Fish**: Bony fish, like all fish, respire using gills.
- **Shark**: Sharks, being cartilaginous fish, also respire using gills.

### Step 2: Compare the Respiratory Organs
- **Blue Whale**: Lungs (mammal)
- **Tadpole of Frog**: Gills (amphibian in larval stage)
- **Bony Fish**: Gills (fish)
- **Shark**: Gills (fish)

### Step 3: Identify the Odd One Out
From the comparison, we can see that:
- The blue whale is the only organism that uses lungs for respiration.
- All the other organisms (tadpole, bony fish, and shark) use gills for respiration.

### Conclusion
Thus, the odd one out with respect to the respiratory organ is the **Blue Whale**.

### Final Answer
**A) Blue Whale**

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