Every organism on Earth belongs to a kingdom. Originally, there were only two kingdoms: Animalia and Plantae. The five kingdoms classification system was proposed by R. H. Whittaker in 1969. The five kingdoms now recognized are Monera, Protista, Fungi, Plantae, and Animalia. Table 8-1 presents a composite of information about the five kingdoms based on the content of many of the Web sites (listed at the end of this chapter) we visited in our research.
 From http://www.usoe.k12.ut.us/curr/science/sciber00/7th/classify/sciber/5king1.htm, accessed in April 2002.
|Kingdom||Cell Organization||Method of Reproduction||Examples|
|Monera||Single or colony||Conjugation, fission||Bacteria, cyanobacteria|