Flatworms are the simplest of the worm groups. There are about 20,000 species in this group. Flatworms are found many places and can be free living or parasitic. A parasite lives off another living thing called a host and can be harmful. One of the best known flatworms is the tapeworm. Find out more!
These Facts Prove That Flatworms Are Truly Fascinating
- C.C.
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