Which of the following excretory organs is found in crustaceans ?

Options

A. Flame cells
B. Nephridia
C. Green glands
D. Malpighian tubules

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: We need to identify the excretory organ that is specifically found in crustaceans.

2. **Identifying the Options**: The options provided are:
- A) Flame cells
- B) Nephridia
- C) Green glands
- D) Malpighian tubules

3. **Analyzing Each Option**:
- **A) Flame cells**: These are excretory structures found in flatworms (phylum Platyhelminthes). Since crustaceans are not flatworms, this option is incorrect.
- **B) Nephridia**: These are the excretory organs of earthworms (phylum Annelida). Again, since crustaceans are not earthworms, this option is also incorrect.
- **C) Green glands**: These are the excretory organs found in crustaceans, such as prawns. They are also known as antennal glands and play a crucial role in excretion in these organisms. This option is correct.
- **D) Malpighian tubules**: These are the excretory structures found in insects. Since crustaceans are not insects, this option is incorrect.

4. **Conclusion**: The correct answer is **C) Green glands**, as they are the excretory organs found in crustaceans.