1. Classifying Life

2. Classification:
The process of grouping things based on their similarities.

3. Why do scientists/biologists classify organisms?
Classification makes them much easier to study.

4. BIG WORDS: Binomial Nomenclature
Binomial = “2 names”
Carolus Linnnaes, Swedish botanist, 1730s
Two part name: genus & species

5. Classification grouping that contains similar, closely related organisms
Genus:
Group of organisms that can mate with each other and produce offspring.
Species:

6. Example: Felis domesticus (house cat)
Notice that the “F” is capitalized, but the “d” is not! That’s binomial nomenclature

7. Levels of Classification
Memorize:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

8. Did King Phillip Come Over For Good Spaghetti?
Use this trick to memorize it (or make up your own):
Did King Phillip Come Over For Good Spaghetti?

9. Taxonomic Key
Useful tool that help determine the identity of an organism
Here is a really simple one:

10. - Organisms with cells that contain nuclei (see next slide)
Three Domains of Life
Bacteria
- Prokaryotes (unicellular; cells lack a nucleus)
-heterotrophs and autotrophs
Archaea
- Greek word “ancient”
-prokaryotes (unicellular; cells lack a nucleus)
Eukarya
- Organisms with cells that contain nuclei (see next slide)

11. multicellular eukaryotes
Domain Eukarya
Protists
“odds and ends” that cannot be classified as fungus, plant, or animal
Multi or unicellular
Fungi
heterotrophs
Multi and unicellular
Plants and Animals:
multicellular eukaryotes