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How do kingdoms work in biology?

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They don't exist anymore. Taxonomic classification has been updated, and we have domains in their place: Archaea, Bacteria and Eukaryota. read more

They don’t exist anymore. Taxonomic classification has been updated, and we have domains in their place: Archaea, Bacteria and Eukaryota. read more

Traditionally, some textbooks from the United States used a system of six kingdoms (Animalia, Plantae, Fungi, Protista, Archaea/Archaebacteria, and Bacteria/Eubacteria) while textbooks in countries like Great Britain, India, Greece, Australia, Latin America and other countries used five kingdoms (Animalia, Plantae, Fungi, Protista and Monera). read more

1. Methanogens: This type of bacteria produces methane. Many such species live in the intestines of animals. They help breakdown food in the intestines and also provide essential nutrients. In return, the bacteria get a source of energy. This is an example of a mutualistic symbiotic relationship, which is when two organisms work together to survive. 2. read more

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