1. Unit 6 Continued Today’s Objective:
I can classify organisms using a classification tool.
I can generalize criteria for classification of organisms.

2. 8 Levels of Organization
Domain:
Highest rank
Single cell or Multi-cellular
Eukaryotes
Bacteria
Archaea

3. 8 Levels of Organization
Domain: Kitty Cat Example
~ Eukaryota ~
Made up of many cells
Cells have nucleus
More complex

4. 8 Levels of Organization
Kingdom:
2nd highest level
What can your cells do?
Specialization of cells
Eukaroyta: Bacteria:
Animalia Archaea:
Plantae
Fungi
Protista

5. 8 Levels of Organization
Kingdom: Kitty Cat Example
~ Animalia ~
Complex organism made up of complex cells
Cannot make their own food
Can move!

6. 8 Levels of Organization
Phylum:
Below Kingdoms
Two versions:
Based on physical similarities (older)
Based on genetic similarities (newer)
Animalia has 29 phyla.
Plantae has 12.
Bacteria has over 30!

7. 8 Levels of Organization

8. 8 Levels of Organization
Phylum: Kitty Cat Example
~ Chordata ~
Has a hollow body
Has a skeleton
Has a spinal cord

9. 8 Levels of Organization
Class:
Below phylum
Hundreds of classes!
(16 in the chordata phylum alone!)

10. 8 Levels of Organization
Class: Kitty Cat Example
~ Mammalia ~
Does not lay eggs, has live births
Have fur/hair
Produce milk for offspring

11. 8 Levels of Organization
Order:
Below class
Some mammalia examples:
Artiodactyla (hoofed)
Carnivora (carnivores)
Primates (that’s us!)
Tubulidentata (aardvarks)

12. 8 Levels of Organization
Order: Kitty Cat Example
~ Carnivora ~
Eats meat (carnivore)
Fixed jaw
Sharp canine teeth

13. 8 Levels of Organization
Family:
Below order
Organisms belonging to the same family would have evolved from the same ancestors and share relatively common characteristics.
Thousands of different families!

14. 8 Levels of Organization
Family: Kitty Cat Example
~ Felidae ~
Short muzzle
Retractable claws

15. 8 Levels of Organization
Genus:
Below family
All have similar common ancestors
Must be distinct from each other:
Environments
Behaviors
Note: Organisms that are related BUT are reproductively isolated are typically found in the same genus
I.E. Lions and Tigers

16. 8 Levels of Organization
Genus: Kitty Cat Example
~ Felis ~
“Feline”
Smaller cats
Cannot roar

17. 8 Levels of Organization
Species:
Below genus
Can interbreed & produce offspring
Offspring can reproduce
Similar physical and genetic characteristics

18. 8 Levels of Organization
Genus: Kitty Cat Example
~ Catus ~
Domesticated cats
Kept as pets
40-55 breeds (subspecies)