In which phylum were acoel flatworms previously classified?Multiple choice question.CnidariaPoriferaCtenophoraPlatyheminthes

Cylindrical, unsegmented worms with a pseudocoelom are classified into the phylumMultiple choice question.Nematoda.Cnidaria.Annelida.Platyhelminthes.

Earthworms belong to which Phylum?a) Platyhelminthesb) Molluscac) Annelidad) Arthropoda

How could a biologist distinguish an acoel flatworm from a free living platyhelminth?Group of answer choicesThe acoel worm would be solid throughout, since it lacks a gut.The acoel worm would have a nervous system.Only the acoel is triploblastic.The platyhelminth would have a more primitive gut and nervous system.

Select the three main classes of worms in phylum Platyhelminthes.

Nematodes in the phylum Nematoda areMultiple choice question.flatworms.earthworms.polychaetes.roundworms.