The Five Kingdoms

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.[4] 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.

[4] From http://www.usoe.k12.ut.us/curr/science/sciber00/7th/classify/sciber/5king1.htm, accessed in April 2002.

Table 8-1. The Five Kingdoms
KingdomCell OrganizationMethod of ReproductionExamples
MoneraSingle or colonyConjugation, fissionBacteria, cyanobacteria
ProtistaSingle-celled ...

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