Testes are attached to dorsal body wall of kidney by 

Options

A. mesovarium
B. mesorchium
C. mesothelium
D. all the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the anatomical structure that attaches the testes to the dorsal body wall of the kidney in frogs.

2. **Identifying the Relevant Anatomy**: In frogs, the testes are located in the upper part of the kidneys. They are yellowish, oval-shaped organs that are part of the male reproductive system.

3. **Understanding Peritoneum**: The peritoneum is a membrane that lines the abdominal cavity and covers the abdominal organs. In frogs, the peritoneum forms a double fold that supports various organs.

4. **Identifying the Structure**: The specific structure that connects the testes to the dorsal body wall of the kidney is known as the mesovarium. The mesovarium is a fold of peritoneum that supports the testes.

5. **Evaluating Other Options**: The options provided may include terms like mesovarium, mesothelium, and possibly others. It's important to recognize that mesothelium is a type of tissue that lines body cavities and is not responsible for the attachment of the testes.

6. **Conclusion**: The correct answer to the question is that the testes are attached to the dorsal body wall of the kidney by the mesovarium.

**Final Answer**: The testes are attached to the dorsal body wall of the kidney by the mesovarium.

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