The term 'simple life' can be represented by two crossword solutions, AMOEBA (6 letters) and AMEBA (5 letters). An AMOEBA is a single-celled organism that moves by extending its body in different directions. It is classified as a protozoan and is found in freshwater, saltwater, and soil. An ameba is a type of AMOEBA that is typically found in freshwater and is known for its ability to change shape. Both amoebas and amebas are examples of simple life forms that have been around for millions of years.