The term 'Tiny Organism (Var.)' can be solved by the five-letter word 'AMEBA'. An ameba is a single-celled organism that is found in many different environments, including freshwater, soil, and even the human body. They are among the smallest organisms on Earth, and they move around by extending their pseudopods, or false feet. Amebas are also capable of reproducing asexually, meaning they can divide into two identical cells without the need for a mate.