Some psychiatrists and/or psychotherapists believe that the symptoms of conversion disorder may be symbolic resolutions of psychological conflicts. For example, in some cases vomiting may represent revulsion and disgust, or blindness may represent the inability to accept the witnessing of a traumatic event.
Some of the most important characteristics of prokaryotic cells are as follows: The prokaryotic (Gr., pro-primitive, karyon-nucleus) cells are the most primitive cells from morphological point of view. They occur in bacteria and blue green algae.
Article Summary: There are only two basic types of cells, primitive prokaryotes and the more complex eukaryotes. Here are the main features that distinguish these cell types. Prokaryotes are primarily distinguished by the fact that they lack the eukaryotic feature of a membrane-bound nucleus. In fact, the only membrane in prokaryotic cells is the plasma membrane--the outer boundary of the cell itself.