This is the blastula stage occurring universally in all Metazoa, probably representing an ancestral Protozoan colony in phylogeny.
TRYPANOSOMES, Or Haemoflagellates, minute Protozoan parasites, characterized by the possession of one or two flagella and an undulating membrane, and specially adapted for life in the blood of a vertebrate.'
ciliumick off the series we show the beating cilia of a protozoan using high power phase contrast.
ciliumdeo clip taken by Edward of the beating cilia of a protozoan using phase contrast was shown in the January 1999 Micscape.
Amebic dysentery is caused by the protozoan parasite Entamoeba histolytica.