1. TAXONOMY OR
How do we identify organisms based on who they are related to, what they are made of, or what they do?

2. What does a sea moth look like?

3. DRAGON SEA MOTH

4. Taxonomy The science of classification Why classify?
Huge amount of diversity among living things
Helps to make sense of it all

5. Taxonomy How do we classify? Look for common characteristics
Phylogeny (evolutionary relationships)
Biochemistry
Morphology
Ability to reproduce – biological species

6. Taxonomic Levels Example: Domain: Eukaryota Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Cetacea
Family: Delphinidae
Genus: Tursiops
Species: T. truncatus
Domain - 3
Kingdom - 6
Phylum
Class
Order
Family
Genus
Species

7. 3 Domains
Bacteria
Archaea
Eukaryota

8. 6 Kingdoms Archaebacteria Bacteria (Eubacteria) Protista Fungi Plantae
Animalia

10. Goals of Classification
Goal # 1: Give each type of organism a unique name understood by all
Binomial nomenclature – 2-name naming system:
Developed by Carrolus Linneaus based on visible characteristics.
Genus & species
Ex. Panulirus interruptus, a.k.a. Pacific spiny lobster, rock lobster or crayfish

11. Goal # 2 – Group organisms according to how closely related they are
“Related” means they share a common evolutionary history (phylogeny)
Allows scientists to develop better understanding about organisms & make comparisons & predictions

12. Tree of Life