Special venous connection between liver and intestine and between kidney and intestine is found in frog , what are they called?

Explanation

**Step-by-Step Solution:**

1. **Identify the Venous Connection between Liver and Intestine:**
- The special venous connection between the liver and the intestine in frogs is known as the **Hepatic Portal System**. This system is responsible for transporting blood from the alimentary canal (digestive tract) and its associated glands directly to the liver.

2. **Significance of the Hepatic Portal System:**
- The hepatic portal system plays a crucial role in nutrient processing. It allows the liver to process nutrients absorbed from the intestine before they enter the general circulation. This ensures that the liver can regulate the levels of nutrients and detoxify harmful substances.

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