Which one of the flatworms has eyes ?

Options

A. Fasciola
B. Dugesia
C. Schistosoma
D. Echinococcus

Answer

To answer the question "Which one of the flatworms has eyes?", we will follow these steps:

### Step 1: Identify the Options
The options provided are:
1. Fasciola
2. Dugesia
3. Cysticercus
4. Echinococcus

### Step 2: Analyze Each Option
- **Fasciola**: This is a genus of parasitic flatworms known as liver flukes. They do not have well-defined eyes.
- **Dugesia**: This is a genus of freshwater planarians, which are known to possess eye spots (ocelli) that can detect light.
- **Cysticercus**: This is the larval stage of the tapeworm Taenia. It does not have eyes.
- **Echinococcus**: This is a genus of parasitic tapeworms that also do not have eyes.

### Step 3: Determine the Correct Answer
From the analysis, **Dugesia** is the only flatworm among the options that has eyes (specifically, eye spots).

### Conclusion
The flatworm that has eyes is **Dugesia** (option 2).

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