Excretory organ of insect is

Options

A. Manpighian tubules
B. Malpighian
C. Green gland
D. Coxal gland

Answer

To answer the question regarding the excretory organ of insects, let's break it down step by step:

### Step-by-Step Solution:

1. **Understanding Excretory Organs**:
- Excretory organs are responsible for removing waste materials and toxic substances from the body. They play a crucial role in maintaining the body's metabolic functions.

2. **Identifying the Organ in Insects**:
- Insects belong to the phylum Arthropoda. Within this phylum, they have specific structures for excretion.

3. **Options Given**:
- The options provided are:
A. Malpighian tubules
B. Malpighian gland
C. Green gland
D. Coxal gland

4. **Analyzing Each Option**:
- **A. Malpighian tubules**: These are the primary excretory structures in insects. They function in osmoregulation and waste removal.
- **B. Malpighian gland**: This term is often confused with Malpighian tubules but is not a recognized excretory organ in insects.
- **C. Green gland**: This is an excretory organ found in higher crustaceans, not insects.
- **D. Coxal gland**: These are found in some arthropods like spiders and scorpions, but they are not the primary excretory organs in insects.

5. **Conclusion**:
- The correct answer is **A. Malpighian tubules**. They serve as the excretory organ in insects, helping to maintain osmotic balance and eliminate waste.