1. Aim: How do scientists classify living organisms?

2. What is Taxonomy?
Taxonomy is the branch of biology that involves the identification, naming, and classification of species.
Classification is the process of grouping and naming things based on their similarities.
The modern classification system is based on structural similarities and Evolutionary relationships = 5 Kingdoms.

3. What are the (sub) categories?
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
“General to Specific”
King Phillip Come Out For Goodness Sake

4. Homo sapien Felis feline Canis familaris = Genus & species
The credit for the naming system used today goes to Carolus Linnaeus, an 18th century Swedish botanist.
In his system, each species is given a two part scientific name, called…Binomial nomenclature = two names.
Homo sapien
Felis feline
Canis familaris
= Genus & species
*Genus is capitalized & species is lower case!

5. Misconceptions of Classification & Binomial Nomenclature
Breeds (Shih Tzu vs. Cavapoo) are sub-species of a species!
Coconut (Shih Tzu)
Clem (Cavapoo)

6. The “Domain” is a larger category than
Three Domain System:
The “Domain” is a larger category than
the “Kingdom”.

7. Domains:
Bacteria – members are prokaryotes (cells that lack a nucleus)
Archaea – ancient prokaryotes with different structures & chemical make-up than bacteria.
Eukarya – organisms w/ cells that contain a nucleus.

8. Kingdoms: (subgroup of the Domains)
*Eubacteria
*Archaebacteria
Fungi
Plants
Animals
Protists
*There used to be just
5 Kingdoms.
Do you remember the
name of the other one?
*MONERA

9. Monera *Archaebacteria (ancient) *Eubacteria (modern) prokaryotic cell
Bacteria & No Nucleus: PRO = NO
*Archaebacteria (ancient)
prokaryotic cell
unicellular
cell walls
most are chemotrophic
*Eubacteria (modern)
prokaryotic cell
unicellular
cell walls
auto or heterotrophic

10. Protists
eukaryotic organisms that cannot be classified as an animal, plant or fungi
Uni or multi-celled
Some autotrophs, some hetero, some both

11. Fungi eukaryote Multicellular heterotrophs – feed on dead or decaying
organisms = ________________.
Ex: mushrooms, molds, yeast & mildew
Decomposer

12. Plants
Eukaryote
Multicellular
autotrophs

13. Animals
Eukaryote
Multicellular
Heterotrophs