What is true about regeneration ?

Options

A. Beak in birds
B. Tails in lizards
C. Fish fins
D. All the above

Answer

**Step-by-Step Solution:**

1. **Definition of Regeneration**: Regeneration is the process through which organisms can replace or restore lost or damaged tissues, organs, or limbs. This can occur in both plants and animals.

2. **Examples of Regeneration**:
- **Beak in Birds**: Some bird species can regenerate parts of their beaks if they are damaged.
- **Tails in Lizards**: Lizards are well-known for their ability to regenerate their tails after losing them, a process that helps them escape predators.
- **Fish Fins**: Fish can regenerate their fins if they are injured or lost, allowing them to maintain their swimming ability.

3. **Conclusion**: Since all the mentioned examples (beak in birds, tails in lizards, and fish fins) are valid instances of regeneration, the correct answer to the question is that all of these examples are true about regeneration.

4. **Final Answer**: Therefore, the correct option is "all the above."

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