Find the wrongly matched pair of animal and its excretory structure

Options

A. Balanoglossus - Proboscis gland
B. Earthworm - Nephridia
C. Grasshopper - Malpighian tubules
D. Prawn - Flame cells

Answer

To solve the question of finding the wrongly matched pair of an animal and its excretory structure, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Animals and Their Excretory Structures**:
- We have four options to evaluate:
1. Balanoglossus - Glomerulus
2. Earthworm - Nephridia
3. Grasshopper - Malpighian tubules
4. Prawn - Green glands

2. **Evaluate Each Pair**:
- **Balanoglossus**: The excretory structure is indeed the glomerulus and proboscis. This is correctly matched.
- **Earthworm**: The excretory structure is nephridia, which are present in each segment and excretion occurs through nephridiopores. This is also correctly matched.
- **Grasshopper**: The excretory structure is malpighian tubules, which are responsible for excretion. This is correctly matched as well.
- **Prawn**: The excretory structure is the green glands, which are responsible for excretion in prawns. However, this is often confused with the antennal glands, which serve a similar function.

3. **Determine the Incorrect Match**:
- Upon reviewing the pairs, the last option (Prawn - Green glands) is the one that is often incorrectly matched in terms of terminology. While green glands do function in excretion, they are not the primary excretory structure in all contexts, leading to confusion.

4. **Conclusion**:
- The wrongly matched pair is **Prawn - Green glands**.

### Final Answer:
The incorrectly matched pair of animal and its excretory structure is **Prawn - Green glands**.

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