4.2.4. Phylum - Platyhelminthes
Platyhelminthes, or flatworms, are simple, unsegmented worms with bilateral symmetry, a soft body, and no body cavity. Some are parasites.
DEUS LEARNINGS
Platyhelminthes, or flatworms, are simple, unsegmented worms with bilateral symmetry, a soft body, and no body cavity. Some are parasites.