Domain is a larger and broader group than kingdom. There are only three domains, but five or six kingdoms, depending on your interpretation of kingdoms.
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In biological classification, domain is the highest taxonomic rank, grouping organisms based on fundamental cellular structures and molecular sequences. Kingdom is a lower taxonomic rank within domain, categorizing organisms based on shared characteristics like cell structure, nutrition, and reproduction methods. Essentially, domain is broader and includes multiple kingdoms, while kingdom is more specific and groups together organisms with more closely related characteristics.
The kingdom Animalia belongs to the domain Eukarya, the kingdom Plantae belongs to the domain Eukarya, the kingdom Fungi belongs to the domain Eukarya, the kingdom Protista belongs to the domain Eukarya, and the kingdoms Bacteria and Archaea belong to the domain Bacteria.
The three-domain system recognizes fundamental differences between the Archaea, Bacteria, and Eukarya domains. These differences are based on genetic, biochemical, and structural characteristics that distinguish each domain from one another. This system has replaced earlier classification systems that grouped all organisms into either plants or animals.
Domain is the largest grouping of organisms above kingdom. There are three domains: Bacteria, Archaea, and Eukarya. These domains encompass all living organisms on Earth.
In biological classification, kingdom is a broader category that includes multiple domains. There are three domains of life: Bacteria, Archaea, and Eukarya. Each domain consists of one or more kingdoms.
Rhizobium belongs to the kingdom of monerans .