Write the function of liver in frog's digestive system.

Explanation

### Step-by-Step Solution:

1. **Identify the Organism**: The frog is an organism that belongs to the phylum Caudata and the class Amphibia. Understanding the classification helps in knowing its biological functions.

2. **Understand the Digestive System**: Frogs have a well-developed digestive system that includes various organs, each with specific functions. The liver plays a crucial role in this system.

3. **Function of the Liver**: The liver in frogs secretes a greenish fluid known as bile. This bile is essential for digestion.

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