When should you identify root causes? 1  Whenever you are faced with addressing a challenging community problem. 2  When there is support for a solution that does not seem to get at the real causes of the problem. 3  When there is ignorance or denial of why a community problem exists.
There are two basic types of organisms based on cell type: Prokaryotic and Eukaryotic. Prokaryotic cells are divided into the domains Bacteria and Archaea. Eukaryotic cells make up the more familiar Domain Eukarya. Prokaryotes are the smallest forms of life that can live independently. Most prokaryotes are tiny single cells, but some can form larger, multi-celled structures.
The main difference is that eukaryotes have a nucleus (the name means true nucleus) while prokaryotes do not have a nucleus. Eukaryotes are bigger than prokaryotes; eukaryotes are 10-3o Âµm while prokaryotes are only 1-10 Âµm (on average). Prokaryotes don't have any membrane covered organelles while eukaryotes do have them.