Nitrogen fixation is shown by prokaryotes and not eukaryotes. Comment.

Explanation

### Step-by-Step Solution:

1. **Understanding Nitrogen Fixation**:
- Nitrogen fixation is the process of converting atmospheric nitrogen (N₂) into a more usable form, such as ammonia (NH₃), which can be utilized by living organisms.

2. **Role of Prokaryotes**:
- Prokaryotes, particularly certain bacteria, are capable of nitrogen fixation. Notable examples include **Rhizobium**, **Anabaena**, and **Nostoc**. These microorganisms have the ability to convert atmospheric nitrogen into ammonia through biochemical processes.

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