Identify the organisms in which reproduction can take place by the method of regeneration.

Options

A. Planaria
B. Sporangium
C. Algae
D. Amoeba

Explanation

### Step-by-Step Solution

1. **Understanding Regeneration**: Regeneration is the ability of an organism to regrow lost body parts or to reproduce from broken pieces. This process allows certain organisms to create new individuals from fragments of their bodies.

2. **Identifying Asexual Reproduction**: Regeneration is a form of asexual reproduction, meaning it does not involve the fusion of gametes (sperm and egg). Instead, new individuals are formed from parts of the parent organism.

3. **Examples of Organisms**: Several organisms exhibit regeneration. Notable examples include:
- **Planaria**: A type of flatworm that can regenerate lost body parts. If a Planaria is cut into pieces, each piece can grow into a new Planaria.
- **Starfish**: If a starfish loses an arm, it can regenerate the lost arm, and in some cases, a severed arm can grow into a new starfish.
- **Lizards**: Some lizard species can regenerate their tails after losing them.
- **Sponges**: These simple organisms can regenerate from small fragments.

4. **Conclusion**: The organisms that can reproduce through regeneration include Planaria, starfish, certain lizards, and sponges. Among these, Planaria is a classic example often highlighted in studies of regeneration.