Flatworms belong to the phylum platyhelminthes.
Flatworms are bilaterally symmetric.
The phylum platyhelminthes is bilaterally symmetric.
What is true about the phylum Platyhelminthes?
Options:
  - a hemisphere is tilted away from the sun
  - biological diversity
  - they have bilateral symmetry
  - characteristics
  - Something with a head, thorax, and abdomen
  - sub-units of species
  - aerobic capacity
  - The number of individuals