They are neither a deuterostome or a protostome, since they only have one opening.
Deuterostome. Anus is formed first.
Planarians have bilateral symmetry.
During embryonic development, a deuterostome's first opening is its anus rather than its mouth. Starfish are a type of phylum that is classified as a deuterostome.
Yes, planarians are non-parasitic flatworms
Planarians are neither parasitic or segmented. They are flatworms.
. A deuterostome with a backbone
Deuterostomes
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.
deuterostome ^This is actually false porifera are not segmented animals so thay don't form mouth first(Protostones) or butt first (Deuterostomes) so they are under developed being N/a
deuterostomes
protosome