Give scientific names of the following. Liver fluke, Planaria, Jellyfish, Roundworm.

Explanation

To provide the scientific names of the specified organisms, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organism**: The first organism we need to identify is the liver fluke.
- **Scientific Name**: The scientific name for the liver fluke is *Fasciola hepatica*.
- **Phylum**: It belongs to the phylum Platyhelminthes.

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