Campbell Biology 12th edition: Chapter 26 낱말 카드 | Quizlet

phylogeny

the evolutionary history of a species or group of related species

Systematics

A way of classifying organisms and determining their evolutionary relationship

binomial nomenclature

- made by Carolus Linnaeus

- two name naming system

(binomial nomenclature) two key features that are still useful

two part names for species

hierarchical classification

taxonomic groups (broad to narrow)

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

taxon

A taxonomic unit at any level of hierarchy

phylogenetic tree

the evolutionary history of a group of organisms can be represented

- represents a hypothesis about evolutionary relationships

branch point

represents the divergence of two evolutionary lineages from a common ancestor

sister taxa

groups that share an immediate common ancestor that is not shared by any other group

structures of phylogenetic trees

Horizontally

vertically

diagonally

Linnaean classification and phylogeny

differ from each other

systematists have hypothesized...

a classification system that would recognize only groups that include a common ancestor and all its descendants

phylogenetic tree misconception

show patterns of decent not phenotypic similarity

- doesn't indicated when species evolved

- doesn't indicate how much change occurred in lineage

you should not assume

that a taxon evolved from the taxon next to it