They belong to the phyla Platyhelminthes, along with the flatworms. Members in this phyla are acoelomates.
Turbellarians
they live in afica they live in afica
The three systems that developed in the mesoderm of the planarians are ectoderm, mesoderm, and endoderm. They are usually described as the three germ layers.
2
yes. they are Eucoelomates.
Planarians have bilateral symmetry.
Yes, planarians are non-parasitic flatworms
Planarians are neither parasitic or segmented. They are flatworms.
The structures that enable planarians to expel liquid waste are normally pores. The pores are found on the dorsal surface of the planarians.
Planarians eat decaying organic matter found on the bottom of streams and ponds.
Planarians move by expanding and contracting their bodies as they grip a surface.
annelids
Are annelids vertebrate
Yes
Yes, all organisms have scientific names. Thus planarians have scientific names too.
Annelids have an anus
Platyhelminthes.