Summer B. answered • 10/20/20
Your personal back packet science nerd at your disposal!
Hi Jenny, I hope this helps your question. Firstly, a "dichotomous key" is a tool that allows you to determine the identity of items. "dichotomous" means to divide into 2. So Start by writing down your two words: archaea and protists. Archaea, or rather archaebacteria are a domain of single-celled organisms. These microorganisms lack cell nuclei and are therefore prokaryotes (a cellular organism that lacks an envelope-enclosed nucleus). Examples are: Metallosphaera sedula, Staphylothermus marinus, Thermoproteus tenax. protists are a diverse collection of organisms. They are primarily microscopic and unicellular, or made up of a single cell. Examples: red algae. Protists are unicellular eukaryotes, whereas Archaebacteria are unicellular prokaryotes. It's important to note that Eubacteria and Archaebacteria belong to kingdom Monera; whereas Protists belong to kingdom Protista. Just know those two are very different.
