Deuterostome. Anus is formed first.
They are neither a deuterostome or a protostome, since they only have one opening.
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.
. A deuterostome with a backbone
Deuterostomes
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
no they are neither deuterostome nor prostome because they dont have an alimentary canal. so how can they be any of them? deuterostome are those in which anus forms first then mouth whereas sponges dont have any organ as they are loose aggregate of cells and digestion is intracellular.
A pig is a deuterostome like all other mammals. This means that the anus and mouth are present during embryogenesis.
Its a deuterostome
Porifera