An amoeba, often called an amoeboid, is a type of cell or unicellular organism which has the ability to alter its shape, primarily by extending and retracting pseudopods. Amoebae do not form a single taxonomic group; instead, they are found in every major lineage of eukaryotic organisms.

Single cell organism
Amoeba is a holozoic animal
Is a single cellular organism it has fingers like projection called false feet to catch food it has a large vacuole which helps in digetion and excretion