Experts in physical, occupational and speech therapy, our therapists provide the highest quality care in a wide selection of rehabilitation services.
Biological classification, or scientific classification in biology, is a method of scientific taxonomy used to group and categorize organisms into groups such as genus or species. These groups are known as taxa.
Domain. In taxonomy, Domain is the highest classification rank of living organisms. In Domain there are three categories: eukaryotes, bacteria, and archaea. These classifications are very broad, and each of the three categories is broken down into more specific physical characteristics.See Taxonomic Rank.omain. In taxonomy, Domain is the highest classification rank of living organisms. In Domain there are three categories: eukaryotes, bacteria, and archaea. These classifications are very broad, and each of the three categories is broken down into more specific physical characteristics. See Taxonomic Rank.