1. Be Able To Explain How or Why:
Chapter 17 The Tree of Life Section 17-1 The Linnaean System of Classification
Be Able To Explain How or Why:
Linaeus developed the scientific naming system still used today.
Linnaeus’ classification system has seven levels.
The Linnaean classification system has limitations.
Key terms: taxonomy, taxon, binomial nomenclature, genus, species.

2. Taxonomy Taxonomy is the science of naming and classifying organisms.
In the 1750’s Swedish botanist Carolus Linnaeus developed a system to classify organisms.

3. Scientific Names
A taxon is group or level within the Linnaean system of classification that is organized into a hierarchical order (general to specific).
Binomial nomenclature is a system that gives each species a two part name using Latin words.

4. Scientific Names Genus is the first name in binomial nomenclature.
First letter of genus is CAPITALIZED
First letter of species is lower case
Scientific names are underlined or written in italics
The ground pangolin or Manis temminckii

5. Linnaeus’ Classification System
Linneaus’s classification system uses 7 levels or taxa.
The top level represents all species of a group or Kingdom.
The lowest level is the species.
His system did not use the evidence that we have today.

6. Seven Levels of Classification
Kingdom
Phylum
Class
Order
Family
Genus
Species
King
Phillip
Came
Over
For
Great
Spaghetti

7. Limitations to the Linnaean Classification System
It only focuses on physical similarities
He did not know how to use research techniques to find genetic similarities
He did not examine creatures on the molecular level