Kidney of adult rabbit is

Options

A. Metanephric
B. Mesonephric
C. Pronephric
D. Holonephric

Answer

To determine the type of kidney present in an adult rabbit, we will analyze the options provided:

1. **Understanding the Types of Kidneys**:
- **Metanephric Kidney**: This is the final and most advanced form of kidney found in adult mammals, including rabbits. It is a paired organ where the functional unit is the nephron. Nephrons are responsible for filtering blood, producing urine, reabsorbing water and nutrients, and secreting waste products.
- **Mesonephric Kidney**: This type of kidney is an embryonic structure that is present during the development of vertebrates. In mammals, it is temporary and is replaced by the metanephric kidney.
- **Pronephric Kidney**: This is the most primitive form of kidney, which appears in the early stages of development in vertebrates. It is not functional in adult mammals.
- **Holonephric Kidney**: This is also a primitive type of kidney that consists of nephrotomes arranged segmentally. It is not found in adult mammals.

2. **Analyzing the Question**:
- The question asks specifically about the kidney type found in an adult rabbit. Given that rabbits are mammals, we need to identify which kidney type is present in adult mammals.

3. **Conclusion**:
- Since the metanephric kidney is the type of kidney that develops and functions in adult mammals, including rabbits, the correct answer is **metanephric kidney**.

### Final Answer:
The kidney of an adult rabbit is **metanephric**.