Paedogenesis is found in the larvae of

Options

A. Taenia
B. Fasciola
C. Rana
D. Butterfly

Answer

**Step-by-Step Solution:**

1. **Understanding Paedogenesis**: Paedogenesis is a form of reproduction where larvae can reproduce without undergoing metamorphosis into adults. This means that the larvae can produce offspring directly.

2. **Identifying the Organisms**: The question provides four options: Taenia, Fischula, Rana, and Butterfly. We need to determine which of these organisms exhibits paedogenesis in their larvae.

3. **Analyzing Each Option**:
- **Rana (Frog)**: The larvae of frogs are called tadpoles. Tadpoles undergo metamorphosis to become adult frogs, and they do not reproduce until they reach adulthood. Therefore, they do not exhibit paedogenesis.
- **Butterfly**: The larvae of butterflies are caterpillars. Similar to frogs, caterpillars undergo metamorphosis to become adult butterflies and do not reproduce until they reach adulthood. Thus, they do not exhibit paedogenesis.
- **Taenia (Tapeworm)**: Taenia is a type of flatworm and does not undergo typical larval stages like frogs or butterflies. However, it is known for its complex life cycle and can reproduce asexually in certain stages.
- **Fischula (Flukes)**: Flukes, such as those in the genus Fischula, are known to exhibit paedogenesis. Their larvae can reproduce without going through the adult stage.

4. **Conclusion**: Based on the analysis, the organism that exhibits paedogenesis in its larvae is **Fischula**.

**Final Answer**: Paedogenesis is found in the larvae of **Fischula**.

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