... form of ribosomal RNA sequences) that life branched very early into three lines. Today, due to the work of Woese, many biologists consider all the known living things to represent a "tree of life" with three main braches. Each branch is called a Domain and they are Domain Bacteria, Domain Archaea, and Domain Eukarya. Is the Linnaean System Dead? The Linnaean system ( ... the binomial system of classification. I'd like you to know the names of the categories as well as their order. From most inclusive (largest) to least inclusive, the taxa are Kingdom, Phylum, Class, Order, Family, Ge...

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• Grade Level: High School