Antennary or green glands which are excretory and osmoregulatory organs of crustacean consist of
(a) End sac
(b) Renal sac
(c) Antenna
(d) Lateral and transverse ducts

Options

A. End sac
B. Renal sac
C. Antenna
D. Lateral and transverse ducts

Answer

To solve the question regarding the components of antennary or green glands in crustaceans, we will analyze each option provided:

1. **Understanding Antennary or Green Glands**:
- Antennary glands, also known as green glands, are the excretory and osmoregulatory organs found in crustaceans. They play a crucial role in the elimination of waste products and maintaining the balance of salts and water in the organism.

2. **Analyzing the Options**:
- **(a) End sac**: This term generally refers to a part of a gland or organ, but it is not specifically recognized as a component of the antennary glands.
- **(b) Renal sac**: While renal structures are involved in excretion, the term "renal sac" is not typically used in the context of crustacean anatomy.
- **(c) Antenna**: The antennae are sensory organs and are not directly involved in the excretory function of the green glands.
- **(d) Lateral and transverse ducts**: This option correctly identifies components of the antennary glands. The lateral and transverse ducts are part of the structure that aids in the excretory function.

3. **Conclusion**:
- Based on the analysis, the correct answer is **(d) Lateral and transverse ducts**. These ducts are essential components of the antennary glands in crustaceans, facilitating their excretory and osmoregulatory functions.