Diaphragm is found in

Options

A. Crocodile
B. Kangaroo
C. Ostrich
D. Snake

Explanation

**Step-by-Step Solution:**

1. **Understanding the Diaphragm**: The diaphragm is a dome-shaped muscular structure located below the lungs. It plays a crucial role in the respiratory system by separating the thoracic cavity (which contains the lungs and heart) from the abdominal cavity.

2. **Identifying the Organisms**: The question provides four options: crocodile, kangaroo, ostrich, and snake. We need to determine which of these organisms has a diaphragm.

3. **Analyzing the Options**:
- **Crocodile**: Crocodiles have an incomplete diaphragm, which means it is not fully developed like in mammals.
- **Kangaroo**: Kangaroos are mammals, and they possess a well-developed diaphragm that aids in respiration.
- **Ostrich**: Ostriches are birds and do not have a diaphragm.
- **Snake**: Snakes are reptiles and also do not possess a diaphragm.

4. **Conclusion**: Among the given options, the only organism that has a complete diaphragm is the kangaroo. Therefore, the correct answer is kangaroo.

5. **Final Answer**: The diaphragm is found in **kangaroo**.

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