Are there any other unicellular animals besides amoeba , paramecium and plasmodium?
That’s a complicated answer. Technically, amoeba, paramecium, and plasmodia are not animals. They’re protists. HOWEVER, Protista is divided into subcategories: Plant like organisms, fungus like organisms, and animal like organisms. The animal-like organisms are unicellular and known as Protozoans. (some people even think Protozoa is its own kingdom) So technically, there are no unicellular animals at all. But Protozoans (like those you mentioned) are as close to an animal as a single cell can get. There are many kinds of protozoans. The ones you mentioned, plus Flagellates, Amoeboids, Sporozoans, Apicomplexa, Myxozoans, and Microsporidians. If you just want some examples, some are Leishmania, Giardia, and Toxoplasma. But to answer your question simply: yes there are many others.
