Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Amoebozoa is a phylum of unicellular eukaryotic organisms characterized by their amoeboid movement and shape-shifting abilities. They play significant roles in both free-living ecosystems and as parasites in various hosts.
5 Must Know Facts For Your Next Test
Amoebozoa move using pseudopodia, which are temporary projections of their cytoplasm.
They include both free-living species, such as Amoeba proteus, and parasitic species like Entamoeba histolytica.
Entamoeba histolytica causes amoebic dysentery, a serious intestinal illness.
Amoebozoa can reproduce asexually through binary fission.
Some Amoebozoa form cysts to survive in unfavorable conditions.