Multiple choice

Platyhelminthes are a unique phylum because they include:

  1. Unsegmented flatworms such as the parasitic tapeworm

  2. Unsegmented roundworms such as the parasitic tapeworm

  3. Segmented roundworms such as the parasitic tapeworm

  4. Segmented flatworms such as the parasitic tapeworm
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A Correct answer
Explanation

Platyhelminthes are flatworms characterized by their lack of body segments and a flattened body shape. Tapeworms are a classic example of this phylum.

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