Reparative regeneration occurs in

Options

A. Invertebrates
B. Vertebrates
C. Both invertebrates and vertebrates
D. A few vertebrates

Answer

**Step-by-Step Solution:**

1. **Understanding Reparative Regeneration**:
- Reparative regeneration refers to the process by which multicellular organisms can repair damaged cells or tissues in an injured area.

2. **Identifying Organisms**:
- Organisms can be classified into two main categories: invertebrates (organisms without a backbone) and vertebrates (organisms with a backbone).

3. **Examples of Invertebrates**:
- Many invertebrates, such as starfish, planarians, and certain types of worms, exhibit remarkable regenerative abilities. They can regenerate lost limbs or even whole body parts.

4. **Examples of Vertebrates**:
- Some vertebrates, like certain species of salamanders, can regenerate limbs and tails. However, most vertebrates have limited regenerative capabilities compared to invertebrates.

5. **Conclusion**:
- Since both invertebrates and some vertebrates can perform reparative regeneration, the correct answer to the question is that reparative regeneration occurs in both invertebrates and vertebrates.

**Final Answer**: Reparative regeneration occurs in both invertebrates and vertebrates (Option C).

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