Who first discovered the regenerative ability of Hydra?

Options

A. (a) Aristotle
B. (b) Linnaeus
C. (c) Darwin
D. (d) Trembley

Answer

**Step-by-Step Solution:**

1. **Understanding Hydra**: Hydra is a freshwater polyp that belongs to the phylum Cnidaria within the animal kingdom. It is known for its remarkable regenerative abilities.

2. **Historical Context**: The regenerative ability of Hydra was first discovered in the 18th century. This discovery was not a result of a planned experiment but rather an accidental observation.

3. **The Discoverer**: The individual who made this discovery was Abraham Tremblay. He conducted his observations around the year 1740.

4. **The Experiment**: Tremblay was curious to determine whether Hydra was a plant or an animal. To test this, he dissected a Hydra into two parts.

5. **Observation of Regeneration**: After a few days, Tremblay observed that both parts of the dissected Hydra had regenerated into two complete organisms. This indicated that Hydra has the ability to regenerate, which is a characteristic feature of certain animals.

6. **Conclusion**: Tremblay concluded that Hydra is indeed an animal due to its ability to regenerate, which further emphasized its unique biological properties.

7. **Final Answer**: Therefore, the first person to discover the regenerative ability of Hydra was Abraham Tremblay.

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