1. Classification: Linnaeus and Biological
TSW investigate the process of classification and use a dichotomous key to identify organisms

2. What is classification?
Grouping of organisms according to their characteristics in a logical manner
Taxonomy: discipline of classifying organisms & assigning each organism a universally accepted name

3. How can we organize 1,000,000+ organisms?
Taxonomy: deals with describing, classifying, and naming organisms
Constantly changing…WHY?
We currently have 6 Kingdoms (then divide from there)

4. Linnaeus’s System of Classification
Consists of seven levels
Each level is called a TAXON (plural: taxa)
Kings Play Cards On Fat Green Stools

5. Taxonomic Categories Kingdom……………………………………..100,000+
Phylum………………………………………….10,000+
Class………….……………………………………1,000+
Order…….…………………………………………..100+
Family.…………………….……………………………50+
Genus……………………………………………………12+
Species……………………………………………………..1

6. A species is a group of organisms that are…
Physically similar
Potentially interbreeding
Sharing a common gene pool
Reproductively isolated
Able to produce viable offspring

7. How do new species form?
Environmental or genetic changes cause portions of a population to become reproductively isolated from the rest of the group

8. What are the 6 Kingdoms? Archaebacteria Eubacteria Protista Plantae
Fungi
Animalia

9. Which kingdoms have organisms that can reproduce sexually & asexually?
ALL 6 Kingdoms!

10. Archaebacteria
Example: Deep Sea Hydrothermal Bacteria

11. Eubacteria
Example:
Streptococcus
Escherichia coli

12. Protista
Examples:
Amoeba
Paramecium
Slime molds
Giant Kelp

13. Plantae
Example:
Mosses
Ferns
Flowering Plants

14. Fungi
Example:
Mushrooms
Yeast

15. Animalia
Examples:
Sponges
Worms
Insects
Fishes
Mammals

16. Binomial Nomenclature
Uses 2 words to identify an organism
1st word: Genus (capitalized)
2nd word: Species (Lowercase)
When printed, must be underlined or italicized
Example: Homo sapiens or Homo sapiens