Question

Which platyhelminthes are commonly called the flat worms

Answer 1

Platyhelmenthis commonly known as flat worms falls under the animalia kingdom.
There body don't have much differentiation and body is neither segmented.
Because of the nature of their body shape they are given the name of flat worms.
E.g. tapeworms and many more

Answer 2

Platyheminthes are the flat worms only.
worms like tapeworms are known as the flat worms