Classification Flashcards
Aristotle’s system
Classified into plants or animals, animals divided into red blooded or bloodless and plants divided by size and structure
Linnaeus’s system
Based on observations of morphology and habitat, first system of taxonomy
Taxonomy
The discipline of identifying, naming, and classifying organidms
Taxon order
Genus, family, order, class, phylum, kingdom, domain
Genus
Groups of species that are. Loosely related and shared a common ancestor
Family
Similar, related genera
Order
Related families
Class
Related orders
Phylum
Division of related classes
Kingdom
Related phyla
Domain
The broadest all and co twins one or more 3 domains: archaea, bacteria, and eukarya
Dichotomous keys
Users can identify organisms they encounter
Phylogeny
Evolutionary history of a species
Species
Cluster of organisms that are distinct and shows evidence of a pattern of ancestry and descent
Characters
Inherited features that vary among species
Morphological characteristics
Suggests that docked are related closely and evolved from a recent common ancestor
Biochemical characteristics
Amino acids and nucleotides used to determine evolutionary relationships
Molecular clock
Used to estimate the amount of time it had taken for species to evolve from a common ancestor
Cladistics
L’associez organisms based I. The order that they diverged from a common ancestor
Ancestral characters
Found within the entire line of descent of a group of organisms
Derived characters
Found after a split from the descendant line
Clade
Branching diagram that represents a proposed phylogeny of a species or group
