Excretory organ in prawn is

Options

A. Green glad
B. Malpighian tubules
C. Kidney
D. Nephridia

Answer

**Step-by-Step Solution:**

1. **Identify the Organism**: The question asks about the excretory organ in prawns, which are crustaceans.

2. **Understand Excretory Organs**: Different organisms have various excretory organs. In crustaceans, these organs are responsible for the removal of waste products from the body.

3. **Consider the Options**: The options provided are:
- Green gland
- Small pig intubules
- Kidney
- Nephridia

4. **Analyze the Options**:
- **Green Gland**: This is known to be the excretory organ in crustaceans, including prawns. They are also referred to as antennal glands because they are located at the base of the second antenna.
- **Small Pig Intubules**: This option is not relevant to prawns as it relates to a different organism.
- **Kidney**: This is primarily an excretory organ in vertebrates, not in crustaceans.
- **Nephridia**: These are excretory structures found in annelids and some other invertebrates, not in prawns.

5. **Conclusion**: Based on the analysis, the excretory organ in prawns is the **green gland**.

**Final Answer**: The excretory organ in prawn is the **green gland**.

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