Give an example :
An anaerobic bacteria

Explanation

### Step-by-Step Solution

1. **Understanding Anaerobic Bacteria**:
- Anaerobic bacteria are organisms that do not require oxygen for growth and can survive in environments devoid of oxygen.

2. **Types of Anaerobic Bacteria**:
- Anaerobic bacteria are classified into two main types:
- **Obligate Anaerobes**: These bacteria cannot survive in the presence of oxygen. Oxygen is toxic to them.
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