Read the statements regarding frog. Which of the statements is/are correct and incorrect ?
(i) The medulla oblongata passes out through foramen of Monoro and continues into the spinal cord
(ii) Vasa efferentia are 10-12 in number that arise from the testes
(iii) Ovaries have no functional connection with kidneys
(iv) Frogs are uricotelic

Options

A. (a) Statements (i), (ii) and (iii) are correct while statement (iv) is incorrect
B. (b) Statement (i) and (ii) are correct while statements (iii) and (iv) are incorrect
C. (c) Statements (ii) and (iii) are correct while statements (i) and (iv) are incorrect
D. (d) Statement (ii), (iii) and (iv) are correct while statement (i) is incorrect

Explanation

To determine which statements regarding frogs are correct or incorrect, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (i): The medulla oblongata passes out through foramen of Monroe and continues into the spinal cord.**
- **Analysis:** This statement is incorrect. The medulla oblongata actually passes through the foramen of **magnum**, not the foramen of Monroe. The foramen of Monroe is associated with the lateral ventricles of the brain, not the medulla oblongata.
- **Conclusion:** **Incorrect**

2. **Statement (ii): Vasa efferentia are 10-12 in number that arise from the testes.**
- **Analysis:** This statement is correct. In frogs, the vasa efferentia are indeed 10 to 12 in number and they arise from the testes, transporting sperm to the ejaculatory duct.
- **Conclusion:** **Correct**

3. **Statement (iii): Ovaries have no functional connection with kidneys.**
- **Analysis:** This statement is correct. While the ovaries are located near the kidneys, there is no functional connection between them.
- **Conclusion:** **Correct**

4. **Statement (iv): Frogs are uricotelic.**
- **Analysis:** This statement is incorrect. Frogs are classified as **ureotelic**, meaning they excrete nitrogenous waste primarily in the form of urea, similar to humans. Uricotelic organisms excrete waste as uric acid.
- **Conclusion:** **Incorrect**

### Summary of Statements:
- Statement (i): Incorrect
- Statement (ii): Correct
- Statement (iii): Correct
- Statement (iv): Incorrect

### Final Answer:
The correct statements are (ii) and (iii), while the incorrect statements are (i) and (iv). Therefore, the correct answer is **option C**.

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