Bacteria and archaea differ significantly in their rRNA sequences, but fungi and animals share some rRNA characteristics. While working with a broth culture of archaea in the laboratory, you accidentally spill some of the microorganisms on yourself. read more
Viral species are not classified as part of any of the three domains. Viral species are classified within the Kingdom Plantae in the Domain Eukarya. Viruses are classified as prokaryotes. Viral species are taxonomically differentiated based upon their cell wall. read more
Visualization is not sufficient to identify bacteria properly because bacteria have a limited set of shapes and many unrelated bacteria may share the same shape. Therefore, bacteria biochemical tests are mainly used to identify unknown bacteria. The type of biochemical reaction each bacteria undergoes act as a thumbprint for its identification. read more