| A | B |
|---|
| microorganisms | very small organisms |
| kingdoms | organisms divided to identify groups |
| binary fission | when material from one cell seperates into two cells |
| virus | a nonliving, disease causing particle that uses the materials inside cells to reproduce |
| bacteria | the simplest kind of life known to earth |
| archea | single-celled organisms that can survive in the largest range of environments |
| producers | bacteria that transforms energy from sunlight into energy that can be used by cells |
| decomposers | an organism that feeds on and breaks down dead plant or animal matter |
| parasites | organisms that harm their hosts |
| host cell | the cells that viruses infect in order to make copies |
| algae | protists that live mostly in water and use sunlight as a source of energy |
| plankton | all organisms that drift in water |
| protozoa | animal like protists |
