{"id":1118,"date":"2016-04-07T23:23:29","date_gmt":"2016-04-07T23:23:29","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/biologyxwaymakerxmaster\/?post_type=chapter&#038;p=1118"},"modified":"2024-04-25T23:22:23","modified_gmt":"2024-04-25T23:22:23","slug":"reading-taxonomy","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/wm-nmbiology1\/chapter\/reading-taxonomy\/","title":{"raw":"Taxonomy","rendered":"Taxonomy"},"content":{"raw":"<div class=\"textbox learning-objectives\">\r\n<h3>Learning Outcomes<\/h3>\r\n<ul>\r\n \t<li>Explain how relationships are indicated by the binomial naming system<\/li>\r\n<\/ul>\r\n<\/div>\r\n<strong>Taxonomy<\/strong> (which literally means \u201carrangement law\u201d) is the science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings. Think about how a grocery store is organized. One large space is divided into departments, such as produce, dairy, and meats. Then each department further divides into aisles, then each aisle into categories and brands, and then finally a single product. This organization from larger to smaller, more specific categories is called a hierarchical system.\r\n\r\nIn the eighteenth century, a scientist named Carl Linnaeus first proposed organizing the known <strong>species<\/strong> of organisms into a hierarchical taxonomy. In this system, species that are most similar to each other are put together within a grouping known as a <strong>genus<\/strong>. Furthermore, similar genera (the plural of genus) are put together within a <strong>family<\/strong>. This grouping continues until all organisms are collected together into groups at the highest level. The current taxonomic system now has eight levels in its hierarchy, from lowest to highest, they are: <strong>species, genus, family, order, class, phylum, kingdom, domain<\/strong>. Thus species are grouped within genera, genera are grouped within families, families are grouped within orders, and so on\u00a0(Figure\u00a01).\r\n\r\n[caption id=\"attachment_6106\" align=\"aligncenter\" width=\"663\"]<a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/2318\/2016\/04\/28140641\/Dog_Taxonomy.png\" target=\"_blank\" rel=\"noopener\"><img class=\"wp-image-6106 size-large\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/2318\/2016\/04\/28140641\/Dog_Taxonomy-663x1024.png\" alt=\"Diagram showing the levels of taxonomic hierarchy for a dog, from the broadest category\u2014domain Eukarya\u2014to the most specific\u2014species Canis lupus as a table. Each row is a taxonomic level that contains pictures of living things that belong to that category. The image of the dog is in each row.\" width=\"663\" height=\"1024\" \/><\/a> Figure 1. This diagram shows the levels of taxonomic hierarchy for a dog, from the broadest category\u2014domain\u2014to the most specific\u2014species. Click for a larger image.[\/caption]\r\n\r\nThe kingdom Animalia stems from the Eukarya domain. For the common dog, the classification levels would be as shown in Figure\u00a01. Therefore, the full name of an organism technically has eight terms. For the dog, it is: Eukarya, Animalia, Chordata, Mammalia, Carnivora, Canidae,\u00a0<em>Canis, <\/em>and<em> lupus<\/em>. Notice that each name is capitalized except for species, and the genus and species names are italicized. Scientists generally refer to an organism only by its genus and species, which is its two-word scientific name, in what is called\u00a0<strong>binomial nomenclature<\/strong>.\u00a0Each species has a unique binomial to allow for proper identification.\r\n<div class=\"textbox\" style=\"text-align: center;\">\r\n\r\nTherefore, the scientific name of the dog is <em>Canis lupus<\/em>. It is important that the correct formatting (capitalization and italics) is used when calling an organism by its specific binomial.\r\n\r\n<\/div>\r\nThe name at each level is also called a <strong>taxon<\/strong>. In other words, dogs are in order Carnivora. Carnivora is the name of the taxon at the order level; Canidae is the taxon at the family level, and so forth. Organisms also have a common name that people typically use, in this case, dog. Note that the dog is additionally a subspecies: the \u201c<em>familiaris<\/em>\u201d in <em>Canis lupus familiaris. <\/em>Subspecies are members of the same species that are capable of mating and reproducing viable offspring, but they are considered separate subspecies due to geographic or behavioral isolation or other factors.\r\n<div class=\"textbox tryit\">\r\n<h3>Try It<\/h3>\r\nhttps:\/\/assess.lumenlearning.com\/practice\/f195c297-fc3f-4b8f-9518-9bd6d921aeff\r\n<\/div>","rendered":"<div class=\"textbox learning-objectives\">\n<h3>Learning Outcomes<\/h3>\n<ul>\n<li>Explain how relationships are indicated by the binomial naming system<\/li>\n<\/ul>\n<\/div>\n<p><strong>Taxonomy<\/strong> (which literally means \u201carrangement law\u201d) is the science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings. Think about how a grocery store is organized. One large space is divided into departments, such as produce, dairy, and meats. Then each department further divides into aisles, then each aisle into categories and brands, and then finally a single product. This organization from larger to smaller, more specific categories is called a hierarchical system.<\/p>\n<p>In the eighteenth century, a scientist named Carl Linnaeus first proposed organizing the known <strong>species<\/strong> of organisms into a hierarchical taxonomy. In this system, species that are most similar to each other are put together within a grouping known as a <strong>genus<\/strong>. Furthermore, similar genera (the plural of genus) are put together within a <strong>family<\/strong>. This grouping continues until all organisms are collected together into groups at the highest level. The current taxonomic system now has eight levels in its hierarchy, from lowest to highest, they are: <strong>species, genus, family, order, class, phylum, kingdom, domain<\/strong>. Thus species are grouped within genera, genera are grouped within families, families are grouped within orders, and so on\u00a0(Figure\u00a01).<\/p>\n<div id=\"attachment_6106\" style=\"width: 673px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/2318\/2016\/04\/28140641\/Dog_Taxonomy.png\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6106\" class=\"wp-image-6106 size-large\" src=\"https:\/\/s3-us-west-2.amazonaws.com\/courses-images\/wp-content\/uploads\/sites\/2318\/2016\/04\/28140641\/Dog_Taxonomy-663x1024.png\" alt=\"Diagram showing the levels of taxonomic hierarchy for a dog, from the broadest category\u2014domain Eukarya\u2014to the most specific\u2014species Canis lupus as a table. Each row is a taxonomic level that contains pictures of living things that belong to that category. The image of the dog is in each row.\" width=\"663\" height=\"1024\" \/><\/a><\/p>\n<p id=\"caption-attachment-6106\" class=\"wp-caption-text\">Figure 1. This diagram shows the levels of taxonomic hierarchy for a dog, from the broadest category\u2014domain\u2014to the most specific\u2014species. Click for a larger image.<\/p>\n<\/div>\n<p>The kingdom Animalia stems from the Eukarya domain. For the common dog, the classification levels would be as shown in Figure\u00a01. Therefore, the full name of an organism technically has eight terms. For the dog, it is: Eukarya, Animalia, Chordata, Mammalia, Carnivora, Canidae,\u00a0<em>Canis, <\/em>and<em> lupus<\/em>. Notice that each name is capitalized except for species, and the genus and species names are italicized. Scientists generally refer to an organism only by its genus and species, which is its two-word scientific name, in what is called\u00a0<strong>binomial nomenclature<\/strong>.\u00a0Each species has a unique binomial to allow for proper identification.<\/p>\n<div class=\"textbox\" style=\"text-align: center;\">\n<p>Therefore, the scientific name of the dog is <em>Canis lupus<\/em>. It is important that the correct formatting (capitalization and italics) is used when calling an organism by its specific binomial.<\/p>\n<\/div>\n<p>The name at each level is also called a <strong>taxon<\/strong>. In other words, dogs are in order Carnivora. Carnivora is the name of the taxon at the order level; Canidae is the taxon at the family level, and so forth. Organisms also have a common name that people typically use, in this case, dog. Note that the dog is additionally a subspecies: the \u201c<em>familiaris<\/em>\u201d in <em>Canis lupus familiaris. <\/em>Subspecies are members of the same species that are capable of mating and reproducing viable offspring, but they are considered separate subspecies due to geographic or behavioral isolation or other factors.<\/p>\n<div class=\"textbox tryit\">\n<h3>Try It<\/h3>\n<p>\t<iframe id=\"assessment_practice_f195c297-fc3f-4b8f-9518-9bd6d921aeff\" class=\"resizable\" src=\"https:\/\/assess.lumenlearning.com\/practice\/f195c297-fc3f-4b8f-9518-9bd6d921aeff?iframe_resize_id=assessment_practice_id_f195c297-fc3f-4b8f-9518-9bd6d921aeff\" frameborder=\"0\" style=\"border:none;width:100%;height:100%;min-height:300px;\"><br \/>\n\t<\/iframe>\n<\/div>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-1118\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li>Taxonomic hierarchy of the domestic dog. <strong>Authored by<\/strong>: Veronica Amaku. <strong>Provided by<\/strong>: Houston Community College. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/www.hccs.edu\/\">http:\/\/www.hccs.edu\/<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Shared previously<\/div><ul class=\"citation-list\"><li>Biology. <strong>Provided by<\/strong>: OpenStax CNX. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8\">http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em>. <strong>License Terms<\/strong>: Download for free at http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8<\/li><li>dog. <strong>Authored by<\/strong>: ccbarr. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/dAsmE\">https:\/\/flic.kr\/p\/dAsmE<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><li>Coyote. <strong>Authored by<\/strong>: Ariel Matzuk. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/7HfK28\">https:\/\/flic.kr\/p\/7HfK28<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><li>Fox. <strong>Authored by<\/strong>: Jans Canon. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/bw9swB\">https:\/\/flic.kr\/p\/bw9swB<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><li>Lion at Franklin Park Zoo in Boston. <strong>Authored by<\/strong>: Corey Leopold. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/4Zu4fA\">https:\/\/flic.kr\/p\/4Zu4fA<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><li>HUMAN WOMAN. <strong>Authored by<\/strong>: matt smith. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/cantD\">https:\/\/flic.kr\/p\/cantD<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><li>Coiled Snake. <strong>Authored by<\/strong>: Seattleye. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/4VK5ud\">https:\/\/flic.kr\/p\/4VK5ud<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/about\/pdm\">Public Domain: No Known Copyright<\/a><\/em><\/li><li>Paramecium \/ Trichocysten - Opalblau. <strong>Authored by<\/strong>: Picturepest. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/dqbAxg\">https:\/\/flic.kr\/p\/dqbAxg<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><li>Tree. <strong>Authored by<\/strong>: Sheila in Moonducks. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/8Jtz9Q\">https:\/\/flic.kr\/p\/8Jtz9Q<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><li>Fungi. <strong>Authored by<\/strong>: Nick Bramhall. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/flic.kr\/p\/8KLrgq\">https:\/\/flic.kr\/p\/8KLrgq<\/a>. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by-sa\/4.0\/\">CC BY-SA: Attribution-ShareAlike<\/a><\/em><\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":18798,"menu_order":8,"template":"","meta":{"_candela_citation":"[{\"type\":\"cc\",\"description\":\"Biology\",\"author\":\"\",\"organization\":\"OpenStax CNX\",\"url\":\"http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"Download for free at http:\/\/cnx.org\/contents\/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8\"},{\"type\":\"original\",\"description\":\"Taxonomic hierarchy of the domestic dog\",\"author\":\"Veronica Amaku\",\"organization\":\"Houston Community College\",\"url\":\"http:\/\/www.hccs.edu\/\",\"project\":\"\",\"license\":\"cc-by-sa\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"dog\",\"author\":\"ccbarr\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/dAsmE\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Coyote\",\"author\":\"Ariel Matzuk\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/7HfK28\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Fox\",\"author\":\"Jans Canon\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/bw9swB\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Lion at Franklin Park Zoo in Boston\",\"author\":\"Corey Leopold\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/4Zu4fA\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"HUMAN WOMAN\",\"author\":\"matt smith\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/cantD\",\"project\":\"\",\"license\":\"cc-by-sa\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Coiled Snake\",\"author\":\"Seattleye\",\"organization\":\"\",\"url\":\"https:\/\/flic.kr\/p\/4VK5ud\",\"project\":\"\",\"license\":\"pd\",\"license_terms\":\"\"},{\"type\":\"cc\",\"description\":\"Paramecium \/ Trichocysten - 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