Amoeba is a group of primitive protists. They move through extension and retraction of their “false feet”, thus changing their shape as they move. This type of movement is called amoeba movement.
Stentor, also called Trumpet Animalcule, is a single cell protist. They have a horn-shaped body with cilia uniformly cover the most surface area.
Vorticella is a type of ciliate protozoans. They are tiny, single-cellular, and animal-like microorganisms with a bell-shaped head and a long stalk that anchor its body on a solid object.
Microorganisms are microscopic organisms that include bacteria, archaea, and protist (protozoa, protophyta, and mold). They can be unicellular, multicellular, or cell clusters.
