True regeneration is served in

Options

A. Round Wone
B. Hook worm
C. Planoria
D. Rhizopus

Answer

To solve the question "True regeneration is served in?", we need to understand the concept of true regeneration and analyze the given options.

### Step-by-Step Solution:

1. **Understanding True Regeneration**:
- True regeneration refers to the ability of certain organisms to regrow an entire body part or even an entire organism from a lost segment. This means that when a part of the organism is lost, it can regenerate not just that part but a whole new organism.

2. **Analyzing the Options**:
- **Roundworm**: Roundworms are intestinal parasites and do not possess the capability for true regeneration. They do not regenerate lost body parts.
- **Hookworm**: Similar to roundworms, hookworms are also intestinal parasites and do not exhibit true regeneration.
- **Planaria**: Planaria are flatworms known for their remarkable regenerative abilities. They can regenerate lost body parts and can even form a complete organism from a small fragment of their body. This is a classic example of true regeneration.
- **Rhizopus**: Rhizopus is a type of fungus that is saprophytic in nature. It does not have the capability to regenerate in the way that true regeneration is defined.

3. **Conclusion**:
- Among the options provided, only **Planaria** (flatworms) exhibit true regeneration. Therefore, the correct answer to the question is **Planaria**.

### Final Answer:
True regeneration is served in **Planaria**.

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