Classification Vocab Flashcards
(20 cards)
the grouping of objects or organisms based on a set of criteria.
Classification
identifying, naming, and classifying species based on natural relationships.
Taxonomy
gives each species a scientific name that has 2 parts.
Binomial Nomenclature
a named group of organisms.
Taxon
a group of species that are closely related and share a common ancestor.
Genus
the next higher taxon, consisting of similar, related genera.
Family
contains related families.
Order
contains related orders.
Class
contains related classes.
Phylum/Division
used instead of phylum for the classification of bacteria and plants.
Division
the taxon composed of related phyla or divisions.
Kingdom
the broadest of all the taxa and contains one or more kingdoms.
Domain
the evolutionary history of a species.
Phylogeny
inherit features that vary among species.
Characters
a model that is used to compare DNA sequences from two different species to estimate how long the species have been evolving since they diverged from a common ancestor.
Molecular Clock
a method that classifies organisms according to the order that they diverged from a common ancestor.
Cladistics
a branching diagram that represents the proposed phylogeny or evolutionary history of a species or group.
Cladogram
the species classified in Domain Archaea, are thought to be more ancient than bacteria and yet more closely related to eukaryote ancestors.
Archaea
eucaryotic organisms that san be unicellular, colonial, or multicellular.
Protists
a unicellular or multicellular eukaryote that absorbs nutrients from organic materials in its environment.
Fungus