Classification Evolution Unit. The branch of science where scientists classify organisms and assign...
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Transcript of Classification Evolution Unit. The branch of science where scientists classify organisms and assign...
ClassificationEvolution Unit
Taxonomy
The branch of science where scientists classify organisms and assign each a universally accepted name.
•A two name system for writing scientific names.•The genus name is written first.
• (always Capitalized)•The species name is written second.• (never capitalized)
•Both words are italicized if typed or underlined if hand written. • Example: Felis concolor or F. concolor
Which is the genus? The species?
Bin
om
ial
Nom
en
cla
ture
Phylogeny
The evolutionary history of an organism.
phylogenetic Tree
A family tree that shows a hypothesis about the evolutionary relationships thought to exist among groups of organisms.
Dichotomous Key
A key used to identify an unknown organism.
The user is presented with a sequence of choices between two statements, based on characteristics of the organism. By always making the correct choice, the name of the organism will be revealed.