classification why is it important to classify?. classification a. the arrangement of organisms into...

CLASSIFICATION Why is it important to classify?

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CLASSIFICATION

Why is it important to classify?

Classification

A. The arrangement of organisms into orderly groups based on similarities.

B. Why do we classify?

a. Too many organisms exist. b. Saves time (organization).c. To study characteristics of

species.d. To study relationships

between species.

Page 4: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

C. Early Systems of Classification

a. Aristotle introduced a two part system

b. Animals and PlantsAnimals Plants

Land HerbsAir ShrubsWater Trees

Page 5: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

D. TODAYS CLASSIFICATION SYSTEM

a. Introduced by Carolus Linnaeus

Page 6: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

b. Classified by:

1. How organisms obtain food.

2. Body structures

3. Behavior- various adaptations

4. Chemical make up- genes, fossils, phylogeny

Page 7: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

E. 8 levels of classification

a. Domain - largest, most general b. Kingdomc. Phylumd. Classe. Orderf. Familyg. Genush. Species- smallest, most similar

Page 8: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

Did King Phillip Come Over For Grape Soda?

Page 9: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

G. SUBDIVISIONS OF THE FOUR KINGDOMS

a. There are 6 subdivisions for each kingdom

P C O F G SEach subdivision is smaller

than the one before.

Page 10: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

b. Organisms have more similarities as the group gets smaller.

c. Organisms within the same species normally can reproduce.

Page 11: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

H. Binomial nomenclature

a. Developed by Carolus Linnaeus over 200 yrs ago.

b. A two name system- “Scientific name”1. First name- Genus (many similarities)2. Second name- Species (VERY similar)

3. Names are in Latin- “universal language”.

Page 12: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

I. RULES TO WRITE SCIENTIFIC NAMES

a. No two organisms have the same scientific name.

b. Genus is always CAPITALIZEDc. Species is always lower cased. Example: Felis leo

Page 13: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

J. COMMON NAMES

a. Mountain lion and puma b. Whistle pig and ground hogc. Grinny and chipmunk 1. Cause Confusion 2. Same name for different organisms

Page 14: CLASSIFICATION Why is it important to classify?. Classification A. The arrangement of organisms into orderly groups based on similarities

K. Scientific Names

a. Avoid communication errors

b. Groups similar phylogenyc. “Describes” the speciesd. Organizes for easier

identification

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