Write two examples of prokaryotic cells.

Explanation

To answer the question, "Write two examples of prokaryotic cells," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Prokaryotic Cells**:
- Prokaryotic cells are simple, unicellular organisms that lack a membrane-bound nucleus. Their genetic material is not enclosed within a nuclear envelope, which distinguishes them from eukaryotic cells.

2. **Identifying Characteristics**:
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