Although appendix is considered a vestigial organ in human being, it plays certain role. Explain

Explanation

### Step-by-Step Solution:

1. **Understanding the Appendix**: The appendix is a small, tube-like structure attached to the large intestine. It is often referred to as a vestigial organ, meaning it is considered to have lost most or all of its original function through the course of evolution.

2. **Role of Bacteria in Digestion**: In the human digestive system, there are numerous bacteria that aid in the digestion of food. These bacteria are often referred to as "friendly" or "harmless" bacteria because they do not cause harm to the body and are essential for the digestive process.

3. **Impact of Illness on Bacteria**: During certain illnesses, such as cholera or dysentery, the balance of bacteria in the digestive system can be disrupted. These diseases can flush out the beneficial bacteria, which can lead to digestive issues.

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