____is a small sac like structure where digestive waste is stored temporally.

Explanation

**Step-by-Step Solution:**

1. **Identify the Structure**: The question asks for a small sac-like structure that temporarily stores digestive waste.

2. **Understand the Digestive System**: In the human digestive system, waste is produced after food is digested. This waste needs to be stored before it is expelled from the body.

3. **Locate the Relevant Part**: The final section of the large intestine is known as the rectum.

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