Explain why tadpoles that do not live in salt water do not develop into frogs. Comment.

Explanation

**Step-by-Step Solution:**

1. **Understanding Tadpoles and Metamorphosis**:
- Tadpoles are the larval stage of frogs. They undergo a process called metamorphosis to develop into adult frogs.

2. **Role of Thyroxine Hormone**:
- The metamorphosis of tadpoles into frogs is regulated by a hormone called thyroxine. This hormone is crucial for initiating and controlling the changes that occur during metamorphosis.

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