Identify the mode of reproduction that takes place in protozoans.

Options

A. Binary fission
B. Multiple fission
C. Regeneration
D. Fragmentation

Explanation

**Step-by-Step Solution:**

1. **Understanding Protozoans:**
- Protozoans are single-celled organisms that can reproduce in various ways.

2. **Identifying Reproductive Modes:**
- The question provides four options: binary fission, multiple fission, regeneration, and fragmentation. We need to determine which of these is the primary mode of reproduction in protozoans.

3. **Exploring Binary Fission:**
- Binary fission is a common method of reproduction in many protozoans, where a single organism divides into two identical organisms. However, it is not the only method.

4. **Exploring Multiple Fission:**
- Multiple fission, also known as schizogony, is another method where the nucleus of a protozoan divides multiple times before the cytoplasm divides, resulting in several daughter cells from one parent cell.

5. **Conclusion:**
- After analyzing the reproductive methods, the correct answer is **Multiple fission (Schizogony)**, as it is a significant mode of reproduction in many protozoans.

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