Phylum:Platyhelminthes

-Bilateral symmetry,triploblastic(Bilateria)

-No body cavities(Acoelomates)

-Common name-"flat worms"

-Acoelomates

-Digestive tract w/ 1 opening

-Cephalization

-Parasitic & free-living forms

Class:Tubellaria

-"Planarians"

-Scavangers

-Free-living(can feed & reproduce independently from

host)

-Live in oceans,lakes,ponds, & moist places on land

Class:Trematoda

-Parasitic

-Tough protective cavity

-ex:)"Flukes"

Class:Cestoda

-Parasitic

-ex:"tapeworm"