One of the following does not have gills for breathing. This one is:

Options

A. prawn
B. crab
C. whale
D. fish

Answer

**Step-by-Step Solution:**

1. **Understand the Question**: The question asks which organism does not have gills for breathing. Gills are primarily found in aquatic organisms for the purpose of respiration.

2. **Identify Organisms with Gills**:
- Gills are typically found in fish and other aquatic creatures such as crabs. They allow these organisms to extract oxygen from water.

3. **Identify Organisms without Gills**:
- Mammals, even if they live in water, do not have gills. Instead, they have lungs for breathing.

4. **Consider the Example of a Whale**:
- Whales are aquatic mammals. They breathe air and have lungs instead of gills. This makes them an example of an organism that does not have gills.

5. **Conclusion**: Based on the information, the organism that does not have gills for breathing is the whale.

**Final Answer**: The organism that does not have gills for breathing is the whale.

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