Identify the most common mode of reproduction that takes place in Hydra.

Options

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

Explanation

**Step-by-Step Solution:**

1. **Understanding Hydra's Reproduction:**
- Hydra is a simple aquatic organism that reproduces both sexually and asexually. However, the most common mode of reproduction in Hydra is asexual.

2. **Identifying the Asexual Reproduction Method:**
- Among the various methods of asexual reproduction, the options provided are binary fission, multiple fission, regeneration, and budding.

3. **Choosing the Correct Method:**
- The correct method of asexual reproduction in Hydra is **budding**. In this process, a new individual develops as an outgrowth from the parent Hydra.

4. **Describing the Budding Process:**
- A bud forms on the parent Hydra due to repeated cell division at a specific area. This bud grows and matures while still attached to the parent.

5. **Detachment of the Bud:**
- Once the bud has matured and is ready for survival, it detaches from the parent Hydra, resulting in a new individual that is genetically identical to the parent.

6. **Conclusion:**
- Therefore, the most common mode of reproduction in Hydra is **budding**.

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