Chapter 27: Part one

classifies organisms and determines their evolutionary relationships

has to be data that uses for the tree (forelimbs)

its not data that will strengthen the phyllo tree (coincidence)

is the scientific discipline concerned with classifying and naming organisms

is the evolutionary history of a species or group of related species

is the process whereby organisms not closely related, independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.

4 limbs

The two-part scientific name of a species

The first part of the name

unique for each species within the genus

domain, kingdom, phylum, class, order, family, genus, and species

A taxonomic unit at any level of hierarchy

The evolutionary history of a group of organisms can be represented in a branching

represents the divergence of two species

are groups that share an immediate common ancestor

diverges early in the history of a group and originates near the common ancestor of the group

Phenotypic and genetic similarities due to shared ancestry

groups organisms by common descent

is a group of species that includes an ancestral species & all its descendants

is taxon that is plural

it is useful to know in which clade a shared derived character first appeared

Analogous structures or molecular sequences that evolved independently

Homo sapien genus) ( species