Question

In a small stream, you pick up a rock and observe many small, flattened worms crawling on its undersurface. You decide that they belong to the phylum Platyhelminthes. To which class do they probably belong?

Answer 1

Turbellaria

Step-by-step explanation:

Are one of the traditional sub.divisions of the phylum platyhelminthes, and include all the sub.groups that are not exclusively parasitic.