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Living organisms are divided into six kingdoms by biologists. The six kingdoms are plantae, animalia, archaebacteria, eubacteria, fungi, and protists. Archaebacteria and eubacteria used to be in the same kingdom of monera.

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9y ago
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13y ago

Believe it or not, this is a controversial question. There are two general approaches to the question, called cladism and pheneticism.

Phenetics is a classification system that groups individuals based on shared characteristics, regardless of the familial, evolutionary or genetic connections among individuals or subgroups in the larger group. This is a characteristic of the system in wide use today, including the classifications of Kingdom, Phylum, Class, Order, Family, Genus and Species. When today's popular system was devised, there was not a clear concept of the evolutionary history of organisms, and the genetics-based sciences didn't exist. Defenders of phenetics argue that the classification system is not meant to be a literal family tree, but an organized system for grouping living things

Cladists do not accept the current popular system of classification. They prefer for several reasons to group organisms together based on actual evolutionary/genetic ancestry. The groups they construct in this manner are called 'clades', hence cladism. Any clade consists only of a given species along with all the descendants of that species including all subgroups of descendants. There are no members of the cladethat are not descended from the shared ancestor of the other members. More and more scientists are taking to this approach to classification.

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13y ago

Kingdom

Phylum

Class

Order

Family

Genus

Species

KPCOFGS

Just remember : King Peter Came Over For Good Soup.

Taxonomy is the name for classification systems. The taxonomic system was invented by Carlus Linnaeus in the 1700's.

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12y ago

element, compound, inorganic compounds, and organic compounds

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12y ago

Kingdoms

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Q: What are the four categories of all living organisms?
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