Describe briefly the four major groups of Protozoa.

Explanation

To describe the four major groups of Protozoa, we can break it down into the following steps:

### Step 1: Identify the Four Major Groups of Protozoa
The four major groups of protozoa are:
1. Ciliated Protozoans
2. Amoeboid Protozoans
3. Flagellated Protozoans
4. Sporozoans
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