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Chap 17 Vocab

Vocab WordDefinitionVocab WordDefinitionVocab WordDefinitionVocab WordDefinition
biodiversity variety of organisms considered at all levels from populations to ecosystems order each class contains orders phylogenetic diagram type of diagram that looks like a family tree and shows how closely related a subset of taxa are thought to be eukarya most familiar groups of organisms are members of this domain
class each phylum consists of classes phylogenetics analysis of the evolutionary or ancestral relationships among taxa archaea second domain that also consists of prokaryotes eubacteria aligns with the domain Bacteria
taxonomy science of describing, naming, and classifying organisms family smaller grouping than the order cladistics system of phylogenetic analysis that uses shared and derived characters as the only criteria for grouping taxa archaebacteria aligns with the domain Archaea
taxon any particular group within a taxonomic system genus still smeller grouping than the order shared character feature that all members of a group have in common, such as hair in mammals or feathers in birds protista members are called protists and on of the four kingdoms of eukaryotes
kingdom made up of only two kingdoms(plants and animals) species smallest grouping and contains only a single king of organism derived character feature that evolved only within the group under consideration fungi second kingdom of eukaryotes
domain categories above the kingdom level binomial nomenclature system of two-part names clade group of organisms that includes an ancestor plus all of its descendants plantae third kingdom of eukaryotes
phylum (singular for phyla)subsets below the kingdoms subspecies variations of a species that live in different geographic areas cladogram phylogenetic diagram animalia fourth kingdom of eukaryotes
division systematics goal is to classify organisms in terms of their natural relationships bacteria made up of small, single-celled prokaryotic organisms that usually have a cell wall and reproduce by cellular fission
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