Which of the following is a viviparous lizard?

Options

A. Uromastix
B. Chameleon
C. Hydrophis
D. All of these

Answer

**Step-by-Step Solution:**

1. **Understanding Viviparity**: The term "viviparous" refers to organisms that give birth to live young rather than laying eggs. This is an important distinction as it helps narrow down the options provided.

2. **Identifying the Options**: The options given in the question are:
- A) Euromastix
- B) Chameleon
- C) Hydrophis
- D) All of these

3. **Researching Each Option**:
- **Euromastix**: This is a genus of lizards that are primarily oviparous, meaning they lay eggs.
- **Chameleon**: While most chameleons are oviparous, there is a specific species known as the Jackson's chameleon that is ovoviviparous. This means it retains eggs inside its body until they hatch, appearing to give live birth.
- **Hydrophis**: This refers to a genus of sea snakes, which are also ovoviviparous, but they are not lizards.

4. **Determining the Correct Answer**: Since the question specifically asks for a viviparous lizard, the only relevant option is the chameleon, particularly the Jackson's chameleon, which exhibits ovoviviparity.

5. **Conclusion**: Therefore, the correct answer to the question "Which of the following is a viviparous lizard?" is **Chameleon**.

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