- Unicellular organisms are simple organisms consisting of only one cell.
- Each cell is a complete unit of life that is able to carry out all the living processes.
- The main groups of unicellular organisms are
- bacteria,
- archaea,
- protozoa,
- unicellular algae and
- unicellular fungi.
- Two important unicellular organisms that you need to know in SPM biology are the Amoeba sp. and Paramecium sp.
