Question

what are the features of platyhelminthes

Answer 1

Some defining characteristics of the phylum are that flatworms are acoelomate (they have no body cavity), triploblastic (the body has three tissue layers), and bilaterally symmetric (they have symmetric right and left sides and usually a definite head), and they have organ systems, including an excretory, digestive, ...

Answer 2

bilateral, unsegmented, soft body.

invertebrates.

common passage for both egestion and excretion.