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Chapter 26
Unit One
13
Biology
Undergraduate 2
09/10/2014

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Term
Phylgeny
Definition
Evolutionary history of a species or group of species
Term
Systematic
Definition
Method to classify organisms and determine evolutionary relations
Term
Taxonomy
Definition
How organisms are names and classified, binominal nomenclature
Term
Hierarchical Classification
Definition
Domain, Kingdom, Phylum, Class, Order, Family, Genis, Species
Term
Sister Taxa
Definition
Share immediate common ancestor
Term
Basil Taxa
Definition
Diverged from early in group history
Term
Cladistics
Definition
Group that includes ancestors and all decedents
Term
Clade
Definition
Group that includes new trait and decendents
Term
Monophyletic Clade
Definition
Valid has one path
Term
Paraphyletic Clade
Definition
Some but not all descents
Term
Polyphyletic Clade
Definition
Distantly related species but doesn't include most recent common ancestor, most problematic
Term
Outgroup
Definition
Oldest relative
Term
3 Domain System
Definition
Achaea, bacteria, eukaryote
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