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Taxonomy is a way that scientists classify living things. This classification system is also known as the Linnaean system. Named after a Swedish botanist called Carl Linnaeus. The order of classification is as follows: domain, kingdom, phylum, class, order, family, genus, species and subspecies. A common species that most people are familiar with is the dog or Canis lupus.

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Systematics had its beginnings during the fifteenth and sixteenth centuries as a part of renewed general interest in the natural world. In the eighteenth century, the binomial or two-name system was introduced, which has persisted until present day. The binomial consists of two parts which are the name of the genus and that of the species. Additional categories of classification were added in the nineteenth and twentieth centuries. Genera are now grouped into families; and those families into orders; and those orders into classes; and those classes into phyla or divisions; and phyla and divisions into kingdoms being the major division use in biological classification. (Rye, Wise, & Jorokovski, 2017, Chapter 20, Phylogenies and the History of Life).

Rye, C., Wise, R., & Jorokovski, Vladimir. (2017). Biology. Retrieved from The University of Phoenix eBook Collection Database.

Name one autoimmune disorder. How does it affect the immune system? Do you know someone who has an autoimmune disorder? How does it affect his or her life? 50 words.