The term 'low life' can be defined as someone who is considered to be of a lower social class or someone who lives a life of crime. This term can also be used to describe certain organisms, such as amoebae, worms, and amebas. Amoebae are single-celled organisms that move by extending and retracting their pseudopods. Worms are elongated invertebrates that live in soil or water and feed on organic matter. Amoebas are similar to amoebae but are larger and have more complex structures. Amebas are single-celled organisms that move by extending and retracting their pseudopods, similar to amoebae. All of these organisms can be considered low life due to their small size and lack of complexity.