Opening at the end of digestive system is called____.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Digestive System**: The digestive system is a complex network that processes food, absorbs nutrients, and eliminates waste. It consists of various organs including the stomach, small intestine, and large intestine.

2. **Identifying the End of the Digestive System**: At the end of the digestive system, there is an opening where waste is expelled from the body. This is the final part of the digestive process.

3. **Naming the Opening**: The specific name for the opening at the end of the digestive system is the "anus." This is where the indigestible food and waste materials exit the body.

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